407 Most Common Last Names Beginning with O

In this section of the site we have data on the most common last names beginning with O in the United States. These names are taken directly from the most recent census data.

Currently, the most popular last name beginning with O in America is Ortiz, with a total count of 286,899 people who have the surname. The surname Ortiz occurs roughly 97 times per 100,000 people in the U.S.

The table below shows the most common surnames ending starting with O with statistics on the heritage and ancestry of those with the surname.

This list has been compiled using the most recent Census data and we have included only names where at least 1,000 people have the surname.

Click any of the names in the table below to find out more about the origin, meaning, and ancestry of each last name.

Rank Name Count White Black API AIAN 2+ Races Hispanic
68 ORTIZ 286,899 4.96% 0.64% 0.67% 0.37% 0.25% 93.11%
140 OWENS 182,719 65.85% 28.41% 0.36% 0.75% 2.47% 2.17%
157 OLSON 164,035 94.76% 0.40% 0.66% 0.72% 1.43% 2.03%
239 ORTEGA 127,256 4.77% 0.29% 1.15% 0.43% 0.25% 93.11%
258 OBRIEN 118,557 93.85% 1.29% 0.76% 0.37% 1.42% 2.32%
264 OLIVER 115,900 64.19% 27.45% 0.68% 0.74% 2.43% 4.52%
408 OCHOA 78,677 4.53% 0.29% 0.54% 0.36% 0.18% 94.09%
417 OCONNOR 77,923 92.81% 2.12% 0.75% 0.33% 1.37% 2.61%
502 OSBORNE 66,827 82.28% 12.39% 0.50% 0.65% 1.97% 2.22%
512 OROZCO 65,904 3.40% 0.17% 0.39% 0.15% 0.12% 95.76%
543 OWEN 61,630 91.78% 2.37% 0.73% 0.87% 1.71% 2.54%
566 OLSEN 59,356 93.69% 0.34% 0.77% 0.76% 1.79% 2.65%
689 ONEILL 50,028 92.67% 0.94% 0.77% 0.27% 1.36% 3.99%
729 ONEAL 47,979 64.55% 29.17% 0.44% 0.74% 2.62% 2.48%
774 ORR 44,388 79.42% 15.00% 0.65% 0.77% 1.96% 2.20%
795 ODONNELL 43,460 95.10% 0.47% 0.56% 0.27% 1.22% 2.38%
961 OCONNELL 36,194 95.42% 0.32% 0.59% 0.18% 1.28% 2.20%
996 ODOM 35,020 69.03% 25.85% 0.45% 0.58% 1.99% 2.11%
1078 OSBORN 32,439 91.04% 2.89% 0.67% 0.89% 1.93% 2.57%
1117 ODELL 31,349 91.44% 2.39% 0.57% 0.77% 1.85% 2.98%
1199 OSORIO 29,482 3.70% 0.55% 1.17% 0.14% 0.21% 94.23%
1220 ONEIL 28,949 88.03% 6.46% 0.55% 0.51% 1.78% 2.67%
1275 OLVERA 27,551 4.29% 0.14% 0.15% 0.22% 0.13% 95.08%
1319 ORELLANA 26,651 3.46% 0.37% 0.35% 0.06% 0.12% 95.64%
1373 OTT 25,738 94.06% 1.22% 0.56% 0.66% 1.44% 2.07%
1374 OCAMPO 25,720 3.18% 0.14% 14.56% 0.15% 0.89% 81.08%
1490 OLIVARES 23,982 3.89% 0.22% 0.98% 0.14% 0.16% 94.62%
1568 ORNELAS 22,969 6.12% 0.22% 0.22% 0.27% 0.18% 92.99%
1587 OTTO 22,558 92.73% 2.06% 1.18% 0.60% 1.19% 2.23%
1607 OLEARY 22,329 93.69% 1.03% 0.77% 0.42% 1.50% 2.59%
1633 OJEDA 22,045 4.75% 0.44% 0.86% 0.11% 0.19% 93.65%
1660 OHARA 21,710 88.39% 2.81% 3.40% 0.28% 1.80% 3.33%
1716 OTERO 20,937 8.97% 0.66% 0.54% 0.71% 0.24% 88.88%
1785 OLIVAS 20,106 6.13% 0.24% 0.94% 0.63% 0.34% 91.71%
1835 OLIVA 19,513 21.82% 0.67% 2.84% 0.18% 0.60% 73.89%
1887 OLIVEIRA 19,055 83.93% 4.81% 1.86% 0.26% 2.61% 6.53%
1906 OGDEN 18,860 90.59% 3.73% 0.54% 0.74% 1.62% 2.78%
1914 OVERTON 18,820 67.18% 27.09% 0.39% 0.39% 2.73% 2.22%
1952 ORDONEZ 18,498 4.10% 0.42% 4.68% 0.08% 0.50% 90.23%
1978 OH 18,285 1.99% 0.19% 95.48% 0.05% 1.78% 0.51%
2046 OMALLEY 17,588 95.24% 0.39% 0.66% 0.23% 1.37% 2.12%
2065 OAKES 17,499 90.57% 3.91% 0.69% 1.09% 1.80% 1.95%
2079 OKEEFE 17,414 94.72% 0.36% 0.72% 0.28% 1.26% 2.66%
2099 OAKLEY 17,238 84.98% 9.94% 0.49% 0.61% 1.86% 2.12%
2213 OROURKE 16,457 94.11% 0.58% 0.71% 0.66% 1.31% 2.62%
2225 ONTIVEROS 16,382 4.80% 0.21% 0.26% 0.21% 0.27% 94.24%
2524 OGLE 14,354 91.65% 2.63% 0.57% 1.11% 1.88% 2.15%
2530 OSWALD 14,322 94.81% 0.89% 0.62% 0.34% 1.28% 2.06%
2583 OUELLETTE 13,984 95.92% 0.25% 0.42% 0.44% 1.42% 1.54%
2792 OLDHAM 12,928 85.84% 8.90% 0.53% 0.69% 1.80% 2.23%
2865 ORLANDO 12,586 89.39% 1.28% 0.94% 0.14% 0.93% 7.33%
2907 OVERSTREET 12,342 78.16% 17.17% 0.37% 0.50% 1.95% 1.85%
2919 OGLESBY 12,271 63.37% 31.20% 0.42% 0.51% 2.22% 2.29%
2940 OATES 12,202 61.02% 33.99% 0.30% 0.48% 2.00% 2.21%
2970 OREILLY 12,074 91.86% 2.05% 0.71% 0.35% 1.54% 3.50%
3032 OSULLIVAN 11,818 93.83% 1.72% 0.77% 0.18% 1.24% 2.26%
3309 OTOOLE 10,842 95.31% 0.46% 0.68% 0.15% 0.98% 2.43%
3356 OLGUIN 10,660 6.83% 0.38% 0.29% 0.99% 0.38% 91.12%
3395 OSHEA 10,531 95.27% 0.56% 0.66% 0.16% 0.71% 2.64%
3412 OLIVO 10,483 16.91% 0.59% 0.50% 0.09% 0.30% 81.62%
3590 OSMAN 9,908 43.17% 45.04% 6.33% 0.27% 3.22% 1.97%
3596 OLMOS 9,895 4.31% 0.10% 0.84% 0.20% 0.50% 94.06%
3660 OLIVAREZ 9,720 7.14% 0.14% 0.82% 0.35% 0.33% 91.21%
3704 ONG 9,584 7.32% (S) 87.39% (S) 3.07% 1.88%
3722 OSTRANDER 9,518 94.83% 0.27% 0.60% 0.30% 1.88% 2.11%
3815 OCASIO 9,293 5.98% 1.26% 0.39% 0.14% 0.18% 92.05%
3896 OLIVERA 9,108 15.52% 1.97% 0.92% 0.19% 0.74% 80.67%
3991 OUTLAW 8,901 40.85% 53.63% 0.39% 0.38% 2.79% 1.95%
4273 OROSCO 8,313 6.63% 1.00% 1.00% 1.46% 0.67% 89.25%
4315 ODEN 8,240 61.07% 31.94% 0.57% 0.58% 2.77% 3.07%
4362 OVIEDO 8,145 4.51% 0.25% 0.85% 0.11% 0.17% 94.12%
4430 OLMSTEAD 8,021 94.12% 0.71% 0.61% 0.62% 1.56% 2.38%
4535 ORTA 7,820 8.40% 0.61% 0.56% 0.23% 0.33% 89.86%
4578 ORDAZ 7,753 3.79% 0.18% 0.25% 0.08% 0.13% 95.58%
4610 OVALLE 7,698 5.47% 0.53% 0.25% 0.09% 0.25% 93.41%
4627 OLDS 7,670 74.05% 19.47% 0.69% 0.90% 2.69% 2.20%
4631 OMAR 7,660 32.52% 50.47% 6.24% 0.20% 5.57% 5.00%
4666 OSUNA 7,601 5.26% 0.29% 0.53% 1.84% 0.37% 91.71%
4699 OSBURN 7,549 89.85% 2.95% 0.57% 2.00% 2.21% 2.41%
4699 OTIS 7,549 74.47% 19.22% 0.83% 0.64% 2.01% 2.82%
4831 OGRADY 7,306 94.47% 0.60% 0.74% 0.26% 1.20% 2.72%
4903 OAKS 7,182 87.27% 7.56% 0.31% 0.70% 2.01% 2.16%
4930 OXENDINE 7,139 22.16% 7.89% 0.29% 63.68% 4.93% 1.05%
4965 OROPEZA 7,082 4.41% 0.25% 0.20% 0.11% 0.23% 94.80%
5015 OSTROWSKI 7,005 96.46% 0.14% 0.50% 0.11% 1.00% 1.78%
5201 ORTON 6,720 91.98% 2.43% 0.65% 0.51% 1.50% 2.93%
5433 OBRYAN 6,408 93.26% 1.78% 0.53% 0.53% 1.45% 2.45%
5438 OLIVIER 6,400 67.25% 22.92% 0.44% 0.30% 2.63% 6.47%
5482 ORTH 6,345 95.45% 0.43% 0.79% 0.14% 1.32% 1.88%
5499 OZUNA 6,327 5.29% 0.40% 0.17% 0.60% 0.38% 93.16%
5512 OVERBY 6,311 83.90% 11.84% 0.43% 0.35% 1.44% 2.04%
5554 OSTER 6,259 93.83% 0.78% 0.75% 0.35% 1.65% 2.64%
5619 OSGOOD 6,186 90.27% 4.46% 0.52% 0.50% 2.15% 2.10%
5630 OBREGON 6,172 7.24% 0.34% 1.20% 0.19% 0.19% 90.83%
5649 ORONA 6,145 8.90% 0.29% 0.65% 0.68% 0.41% 89.06%
5853 OCHS 5,901 95.59% 0.15% 0.61% 0.22% 0.81% 2.61%
5931 OLIPHANT 5,808 68.80% 26.29% 0.43% 0.64% 2.03% 1.81%
5967 OLMEDO 5,768 3.48% 0.17% 1.28% 0.10% 0.16% 94.80%
5998 OLINGER 5,732 91.54% 3.42% 0.63% 0.47% 2.20% 1.74%
6021 OLIVE 5,712 71.97% 16.44% 3.06% 0.74% 2.54% 5.25%
6164 OLSZEWSKI 5,554 96.76% 0.18% 0.70% 0.14% 0.59% 1.62%
6179 OBERG 5,537 94.00% 1.39% 0.78% 0.54% 1.32% 1.97%
6223 OSTEEN 5,497 90.07% 5.44% 0.49% 0.25% 1.33% 2.42%
6263 OQUENDO 5,455 5.00% 1.94% 1.74% (S) (S) 91.05%
6284 OQUINN 5,439 83.60% 11.80% 0.40% 0.33% 1.67% 2.19%
6326 OVERMAN 5,396 94.20% 1.54% 0.39% 0.41% 1.54% 1.93%
6524 OSWALT 5,198 95.56% 0.21% 0.44% 0.46% 1.54% 1.79%
6607 OHARE 5,128 94.70% 0.78% 0.45% 0.12% 1.21% 2.75%
6940 ORCUTT 4,831 92.71% 0.29% 0.39% 2.21% 2.07% 2.32%
6983 OMEARA 4,801 94.83% 0.56% 0.98% 0.21% 1.60% 1.81%
6993 OMARA 4,792 90.80% 1.63% 2.17% 0.25% 0.98% 4.17%
7048 OUSLEY 4,751 64.79% 31.38% 0.13% 0.25% 1.87% 1.58%
7217 OLIVEROS 4,624 4.13% (S) 13.56% (S) 1.30% 80.71%
7369 OGLETREE 4,519 48.53% 46.18% 0.46% 0.62% 2.28% 1.93%
7387 OXFORD 4,509 88.16% 5.12% 0.55% 1.29% 1.95% 2.93%
7455 OSEGUERA 4,470 2.89% 0.18% 0.13% (S) (S) 96.69%
7492 OLEA 4,447 9.53% 0.27% 2.45% 0.38% 0.22% 87.14%
7561 OTTEN 4,396 93.49% 0.89% 0.45% 2.21% 0.93% 2.02%
7572 OTTE 4,387 94.60% (S) 0.78% (S) 1.34% 2.74%
7585 ODUM 4,381 66.51% 28.42% 0.32% 0.52% 2.47% 1.76%
7585 OWINGS 4,381 91.44% 2.35% 0.75% 1.39% 2.17% 1.89%
7629 ORANGE 4,350 48.83% 43.52% 0.85% 1.31% 2.83% 2.67%
7694 OXLEY 4,315 87.25% 7.72% 0.44% 0.76% 1.25% 2.57%
7891 OU 4,196 2.24% (S) 95.61% (S) 1.36% 0.60%
7950 OLIN 4,163 88.85% 2.07% 1.32% 1.42% 1.63% 4.71%
8283 OBRYANT 4,001 62.53% 31.59% 0.62% 0.37% 1.90% 2.97%
8317 ODLE 3,984 89.41% 5.30% 0.48% 0.95% 2.01% 1.86%
8697 OSPINA 3,774 6.12% 0.32% 0.21% (S) (S) 93.27%
8720 ORTEZ 3,762 8.40% 0.69% 0.48% 0.53% 0.32% 89.58%
8780 OLESON 3,734 94.83% 0.27% 0.94% 0.64% 1.61% 1.71%
8799 OBER 3,724 93.93% 1.53% 1.21% 0.51% 1.40% 1.42%
8878 ODAY 3,688 93.17% 2.28% 0.98% 0.22% 1.68% 1.68%
8981 ORMSBY 3,643 84.19% 6.20% 0.58% 0.33% 2.28% 6.42%
9048 OCONNER 3,611 79.34% 13.71% 0.69% 0.39% 2.80% 3.07%
9081 OCEGUERA 3,599 2.72% (S) 0.14% (S) (S) 96.86%
9232 ONEY 3,528 88.58% 6.26% 0.82% 1.30% 1.47% 1.56%
9320 OYLER 3,493 94.33% 0.29% 0.57% 0.80% 1.57% 2.43%
9343 OSTROM 3,485 95.12% 0.20% 0.72% 0.34% 1.78% 1.84%
9510 OGILVIE 3,418 78.44% 15.33% 1.43% 0.26% 2.11% 2.43%
9551 OBANDO 3,404 5.82% 0.68% 3.11% (S) (S) 89.92%
9667 OLIVERI 3,357 89.63% 0.86% 0.69% 0.24% 0.60% 7.98%
9839 OHALLORAN 3,289 93.28% (S) 1.03% (S) 1.31% 3.74%
9839 OLIVIERI 3,289 73.64% 1.00% (S) (S) 1.12% 23.75%
9859 OBOYLE 3,281 96.59% (S) 0.37% (S) 1.07% 1.55%
9919 OSTERMAN 3,256 94.07% 0.49% 1.04% 0.34% 1.32% 2.73%
9932 OLNEY 3,248 89.04% 1.23% 1.11% 4.06% 2.34% 2.22%
9940 OSHAUGHNESSY 3,246 95.32% 0.52% (S) (S) 1.20% 2.37%
10041 ORLOWSKI 3,208 97.88% (S) 0.31% (S) 0.59% 1.00%
10064 OBRIAN 3,203 91.07% 3.25% 0.72% 0.50% 1.50% 2.97%
10079 OMAN 3,198 90.99% 2.91% 0.94% 0.53% 1.69% 2.94%
10082 OLMSTED 3,197 95.12% (S) 0.59% (S) 1.56% 2.03%
10132 OGBURN 3,182 69.99% 25.33% 0.41% 0.38% 1.63% 2.26%
10155 OSHIRO 3,177 3.97% 0.19% 79.76% 0.25% 10.51% 5.32%
10191 OLOUGHLIN 3,162 92.09% 1.93% (S) (S) 1.68% 3.61%
10250 ORNDORFF 3,145 92.56% 2.38% 0.54% 0.29% 2.10% 2.13%
10268 ORMAN 3,139 93.28% 1.31% 0.61% 0.70% 1.82% 2.29%
10352 OTTINGER 3,112 95.73% 0.19% 0.64% 0.16% 1.03% 2.25%
10396 ONOFRE 3,099 4.32% 0.29% 0.84% (S) (S) 94.19%
10505 ORSINI 3,055 80.98% (S) 0.56% (S) 0.82% 17.09%
10626 OCALLAGHAN 3,014 95.49% 0.30% 0.66% 0.00% 1.59% 1.96%
10751 ODEA 2,968 95.35% 0.27% 0.71% 0.47% 0.88% 2.32%
10819 OLDENBURG 2,944 95.24% (S) 0.44% (S) 1.32% 2.65%
10837 OWUSU 2,938 1.26% 95.95% 0.20% 0.20% 1.33% 1.06%
10866 OWSLEY 2,932 83.36% 10.91% 0.41% 0.41% 2.22% 2.69%
10983 OFFUTT 2,896 75.73% 18.99% 0.35% 0.31% 2.11% 2.52%
10987 OVERHOLT 2,894 96.30% (S) 0.48% (S) 1.24% 1.59%
11185 OLAGUE 2,827 7.22% 0.57% 0.39% (S) (S) 91.40%
11226 OLDFIELD 2,816 93.75% 2.24% 0.43% 0.53% 1.46% 1.60%
11283 OLLER 2,800 83.71% 0.54% 2.36% 0.71% 1.86% 10.82%
11395 ODANIEL 2,767 89.12% 3.79% 0.61% 1.41% 2.75% 2.31%
11478 ORDWAY 2,741 93.65% 1.50% 0.66% 0.29% 1.79% 2.12%
11529 OHEARN 2,728 94.79% 0.88% 0.92% 0.26% 1.10% 2.05%
11663 OVERBEY 2,688 88.88% 6.96% 0.60% 0.52% 1.45% 1.60%
11697 ORTEGO 2,679 74.84% 0.22% 0.90% 0.34% 0.93% 22.77%
11716 OBANNON 2,675 63.89% 29.68% 0.52% 0.52% 2.88% 2.50%
11764 ODDO 2,663 92.94% 0.71% 0.83% 0.23% 1.35% 3.94%
11856 OVERCASH 2,641 97.08% (S) 0.30% (S) 0.98% 1.48%
11899 OPPERMAN 2,631 94.37% 1.67% 0.42% 0.27% 1.06% 2.20%
11936 OKANE 2,621 85.20% 7.06% 2.71% 0.42% 1.72% 2.90%
11954 OLSSON 2,615 93.73% 0.65% 1.34% 0.50% 1.26% 2.52%
12042 OLIVERAS 2,591 6.21% 1.54% 0.85% 0.19% 0.19% 91.01%
12121 OGG 2,572 95.45% 0.62% 0.51% 0.23% 1.67% 1.52%
12156 OSBOURNE 2,563 54.19% 40.03% 0.55% 0.70% 2.65% 1.87%
12320 OKELLEY 2,524 84.87% 9.39% 0.44% 0.36% 2.06% 2.89%
12384 OROS 2,512 45.10% (S) 0.48% (S) 0.72% 53.38%
12399 ORANTES 2,507 3.07% 0.32% 0.52% (S) (S) 95.81%
12473 ORME 2,489 89.59% 4.54% 0.92% 0.52% 1.73% 2.69%
12520 ORTMAN 2,475 95.80% 0.53% 0.57% 0.32% 0.93% 1.86%
12576 OLANDER 2,462 93.62% 1.18% (S) (S) 1.67% 2.44%
12683 ORDUNA 2,435 3.29% 1.93% 2.18% (S) (S) 91.58%
12696 ORGAN 2,431 84.04% 10.04% 0.58% 0.62% 2.18% 2.55%
12752 OHLER 2,420 94.30% 0.29% 0.95% 0.58% 1.32% 2.56%
12752 OWENSBY 2,420 78.26% 16.53% 0.37% 0.37% 1.49% 2.98%
12842 OGORMAN 2,397 93.87% 0.42% 0.67% 0.21% 1.00% 3.84%
12944 OKAMOTO 2,373 8.93% 0.21% 75.05% 0.25% 13.06% 2.49%
12953 OBERLE 2,371 95.87% 0.25% 0.89% 0.67% 0.97% 1.35%
13081 ORDUNO 2,347 3.62% (S) (S) 0.30% 0.26% 95.74%
13084 ORMOND 2,346 76.30% 18.29% (S) (S) 2.34% 1.96%
13101 ORCHARD 2,340 93.93% 0.43% 0.64% 0.30% 1.79% 2.91%
13115 OCON 2,337 9.88% 1.41% 2.40% 0.51% 0.60% 85.19%
13214 OYER 2,313 92.56% 3.03% 0.69% 0.26% 1.51% 1.95%
13271 OLMEDA 2,298 7.35% 0.70% 0.22% (S) (S) 91.34%
13326 OBERHOLTZER 2,289 97.51% (S) 0.39% (S) 0.74% 0.92%
13330 OSTERHOUT 2,288 93.71% 0.31% 0.35% 1.31% 2.45% 1.88%
13536 OWENBY 2,241 96.88% (S) (S) 0.40% 1.20% 1.03%
13572 OTEY 2,234 52.51% 41.14% 0.54% 0.45% 2.37% 3.00%
13690 OESTREICH 2,212 96.75% (S) (S) 0.45% 0.90% 1.36%
13707 OVERTURF 2,208 93.84% (S) (S) 1.54% 1.99% 2.13%
13746 OVERLY 2,201 92.64% 1.64% 1.68% 0.27% 2.04% 1.73%
13786 OBERLANDER 2,194 95.76% 0.23% 0.59% 0.32% 1.09% 2.01%
13806 OGREN 2,190 95.25% (S) 1.00% (S) 0.87% 2.51%
13815 OREAR 2,188 90.68% 4.89% 0.59% 0.27% 1.55% 2.01%
13850 OPPENHEIMER 2,182 86.39% 1.56% (S) (S) 1.05% 9.99%
13922 OSORNIO 2,169 2.49% 0.00% (S) 0.00% (S) 97.42%
13938 ORTEGON 2,166 8.45% (S) (S) 0.55% 0.46% 90.12%
13997 OBERT 2,153 95.40% 0.28% 0.93% 0.37% 0.60% 2.42%
14050 ONO 2,143 6.81% (S) 80.59% (S) 8.17% 3.69%
14119 OSTLER 2,128 92.76% 0.66% (S) (S) 1.50% 4.46%
14127 OFARRELL 2,127 92.10% 0.42% 0.85% 0.38% 1.97% 4.28%
14215 ODONOGHUE 2,111 92.94% 2.27% (S) (S) 1.04% 2.75%
14238 OVERMYER 2,106 95.49% 0.38% 0.62% 0.38% 1.23% 1.90%
14257 OATMAN 2,102 77.74% 15.70% 0.48% 2.38% 1.76% 1.95%
14294 OEHLER 2,095 95.94% (S) 0.72% (S) 1.24% 1.38%
14468 OCANA 2,064 5.86% 0.44% 2.08% (S) (S) 91.09%
14474 OHANLON 2,063 93.65% 0.53% 0.63% 0.24% 1.79% 3.15%
14474 OMER 2,063 47.21% 37.66% 8.68% 0.24% 4.51% 1.70%
14495 ORTUNO 2,058 3.94% 0.00% 0.00% (S) (S) 95.72%
14532 OYOLA 2,051 4.92% 1.71% (S) (S) 0.34% 92.88%
14579 OKEEFFE 2,043 94.96% (S) 0.54% (S) 0.93% 3.38%
14681 OWNBY 2,026 95.21% 0.30% 0.54% 0.39% 1.68% 1.88%
14713 OUBRE 2,019 68.10% 27.19% (S) (S) 1.93% 2.03%
14739 OHL 2,016 95.73% (S) 1.29% (S) 1.19% 1.39%
14739 OLLIS 2,016 91.91% 3.22% 0.40% 0.69% 1.88% 1.88%
14749 OLDEN 2,014 55.86% 36.94% (S) (S) 3.82% 2.58%
14834 OHAGAN 1,998 91.89% 0.55% 1.00% 0.30% 1.70% 4.55%
14881 OLESEN 1,988 94.72% 0.35% 0.25% 0.60% 1.26% 2.82%
14893 OKADA 1,987 6.44% (S) 81.43% (S) 9.16% 2.87%
14920 OTA 1,984 7.96% 1.21% 75.60% 0.00% 10.28% 4.94%
15005 OUYANG 1,968 0.76% (S) 97.71% 0.00% 1.22% (S)
15151 ORT 1,946 94.55% 0.72% 0.57% 0.36% 0.87% 2.93%
15194 OKAFOR 1,939 1.24% 96.60% (S) (S) 1.24% 0.77%
15255 OLALDE 1,927 4.72% (S) 0.42% 0.00% (S) 94.45%
15328 OHMAN 1,913 95.35% 1.05% 0.63% 0.68% 0.84% 1.46%
15328 ONORATO 1,913 90.64% (S) 0.63% (S) 1.10% 7.42%
15340 OBANION 1,912 87.45% 5.81% 0.68% 1.94% 2.56% 1.57%
15363 ORRIS 1,909 95.08% (S) 0.84% (S) 1.10% 2.04%
15418 OCEGUEDA 1,900 2.00% (S) (S) (S) 0.00% 97.63%
15464 OHM 1,894 87.80% (S) 8.03% (S) 1.11% 2.69%
15508 ODOWD 1,887 93.32% (S) 0.74% (S) 1.54% 3.92%
15508 OGAWA 1,887 7.79% (S) 76.31% (S) 11.98% 3.18%
15564 OLMO 1,879 15.97% 1.28% 2.77% (S) (S) 79.30%
15579 OUTLAND 1,877 64.94% 30.21% (S) (S) 1.65% 2.61%
15639 OSEI 1,868 1.61% 96.63% (S) (S) 0.96% 0.59%
15673 ORE 1,862 56.66% 15.20% 1.61% (S) (S) 25.30%
15763 OGARA 1,849 94.75% 0.65% 1.08% 0.32% 0.92% 2.27%
15806 OLIVERO 1,842 30.67% 1.14% (S) (S) 0.81% 66.94%
15833 ONATE 1,838 5.22% (S) 6.64% (S) 0.44% 87.16%
15898 OBERRY 1,829 82.18% 10.55% 0.82% 2.41% 2.52% 1.53%
15995 ORAM 1,815 92.23% 3.42% 0.77% 0.28% 1.65% 1.65%
16064 OCHSNER 1,803 95.84% 0.33% 0.28% 0.50% 0.83% 2.22%
16125 OPPENHEIM 1,795 94.99% 0.33% 1.11% 0.56% 1.34% 1.67%
16214 OSCAR 1,781 29.03% 43.07% 1.29% 5.73% 2.70% 18.19%
16228 ORRELL 1,779 92.07% 2.70% 0.51% 0.28% 1.18% 3.26%
16265 OLAH 1,773 92.72% (S) 0.73% (S) 1.80% 4.06%
16273 OSTENDORF 1,772 96.50% 0.51% (S) (S) 0.73% 2.03%
16315 OREN 1,766 91.68% 2.04% 0.57% 0.45% 2.10% 3.17%
16327 ODA 1,765 18.87% 4.31% 63.80% (S) 9.46% (S)
16349 ORVIS 1,762 90.24% 4.09% 0.34% 0.34% 1.99% 3.01%
16462 OBERLIN 1,746 95.25% 0.34% 0.57% 0.40% 1.32% 2.12%
17005 OLIVERIO 1,671 88.33% 0.66% 3.41% 0.00% 0.96% 6.64%
17063 ORNER 1,664 93.69% 1.02% (S) (S) 1.98% 2.58%
17087 OTWELL 1,661 94.46% 0.48% 0.66% 0.30% 1.51% 2.59%
17104 OPP 1,659 96.02% (S) 0.90% (S) 0.84% 1.57%
17127 OVERBECK 1,656 96.32% 0.42% 0.48% 0.30% 1.09% 1.39%
17229 OVERALL 1,644 66.85% 26.89% (S) (S) 3.53% 2.07%
17331 OVANDO 1,631 5.21% 0.55% 0.31% (S) (S) 93.68%
17398 OLAUGHLIN 1,622 93.22% 0.80% 0.55% 0.86% 2.03% 2.53%
17472 OVERBAY 1,613 95.29% 0.37% 0.43% 0.87% 1.49% 1.55%
17551 OHLSON 1,603 94.32% (S) 0.62% (S) 1.93% 2.62%
17565 OO 1,601 3.00% (S) 92.88% (S) 2.56% 0.87%
17596 ODEGARD 1,597 94.61% (S) (S) 0.94% 0.88% 2.63%
17625 ORZECHOWSKI 1,594 96.17% (S) 0.63% (S) 1.57% 1.38%
17673 OTHMAN 1,588 77.58% 4.85% 5.73% 0.69% 5.86% 5.29%
17699 ORWIG 1,585 97.10% (S) 0.32% (S) 0.76% 1.45%
17699 OURS 1,585 97.35% 0.38% (S) (S) 0.57% 1.39%
17709 ORTIS 1,584 18.18% 5.81% 0.44% 0.95% 0.76% 73.86%
17798 OSBY 1,573 11.82% 81.56% (S) (S) 4.13% 2.03%
17911 OVALLES 1,561 2.37% 0.83% 3.52% (S) (S) 92.57%
17951 OPITZ 1,557 94.28% 0.58% 0.71% 0.64% 1.54% 2.25%
17992 OLES 1,552 90.98% 2.84% 0.90% 1.03% 1.29% 2.96%
18018 OTTMAN 1,549 92.96% 2.71% (S) (S) 1.29% 1.94%
18068 ODRISCOLL 1,543 95.59% (S) 0.45% (S) 1.30% 2.07%
18098 OBERMEYER 1,539 96.43% (S) 0.39% (S) 1.04% 1.69%
18156 OSOWSKI 1,533 96.28% (S) 0.52% (S) 0.91% 1.50%
18218 OSTERBERG 1,527 95.42% (S) 0.52% (S) 1.11% 2.36%
18366 OKELLY 1,508 85.88% 9.28% (S) (S) 1.53% 2.39%
18431 OROSZ 1,502 96.21% (S) 0.47% (S) 0.67% 2.20%
18467 OSHIELDS 1,498 94.99% 0.87% (S) (S) 0.93% 2.34%
18572 ORBAN 1,485 95.49% (S) 0.74% (S) 0.67% 2.36%
18584 ORIHUELA 1,483 6.61% (S) 0.34% 0.40% (S) 92.58%
18808 OLIVAR 1,456 9.75% 2.27% 15.45% 1.10% 1.92% 69.51%
18910 OKEKE 1,444 1.66% 95.29% (S) (S) 1.80% 0.69%
18950 OTTLEY 1,440 51.81% 39.93% 0.56% 0.56% 1.74% 5.42%
18961 ODEH 1,439 80.19% 6.88% 0.90% 0.35% 7.23% 4.45%
19062 OLDAKER 1,428 96.78% (S) (S) 0.70% 1.05% 1.05%
19075 ODWYER 1,427 93.69% 1.33% 1.47% (S) (S) 2.10%
19105 OUK 1,424 0.70% (S) 95.08% (S) 2.25% 1.90%
19152 OSTLUND 1,418 95.56% (S) 0.78% (S) 1.48% 1.34%
19200 OREGEL 1,414 1.41% 0.00% 0.35% 0.00% 0.00% 98.23%
19296 OBI 1,403 7.84% 85.17% 0.93% 3.35% 1.35% 1.35%
19306 OGATA 1,402 8.63% (S) 71.54% (S) 14.12% 4.92%
19321 OUTTEN 1,401 64.53% 30.69% (S) (S) 2.00% 2.00%
19348 OZMENT 1,398 93.85% (S) 0.50% (S) 2.36% 2.50%
19456 OLTMAN 1,389 95.75% (S) 0.86% (S) 1.44% 1.37%
19469 ORGERON 1,388 96.18% (S) (S) 0.58% 0.79% 2.16%
19527 OREA 1,383 3.83% 2.53% 0.65% 0.00% 0.36% 92.62%
19538 OSEGUEDA 1,382 7.09% (S) (S) 1.45% 0.00% 90.96%
19581 OJO 1,378 1.81% 94.12% (S) (S) 2.25% 1.52%
19602 OGAN 1,376 87.21% 4.72% 2.47% 0.65% 1.60% 3.34%
19628 OUZTS 1,374 86.03% 10.26% (S) (S) 1.38% 1.67%
19671 ORENSTEIN 1,370 94.16% 0.44% 1.53% 0.00% 0.73% 3.14%
19671 OVERFIELD 1,370 95.62% (S) (S) 0.51% 1.75% 1.46%
19703 OSMOND 1,367 89.47% 3.73% 1.90% 0.73% 2.27% 1.90%
19814 OFFICER 1,357 66.25% 26.60% (S) (S) 2.51% 3.68%
19865 ORRICK 1,353 93.27% (S) 0.59% (S) 1.55% 3.99%
19945 ODONOVAN 1,345 93.75% (S) 0.82% (S) 1.64% 3.42%
19997 OHERN 1,339 96.34% (S) (S) 0.75% 1.05% 1.42%
20037 ORTNER 1,335 94.53% 0.45% 0.37% 0.82% 1.27% 2.55%
20076 ODEGAARD 1,331 94.44% 0.00% 1.05% 0.68% 1.05% 2.78%
20076 OTTER 1,331 92.79% 1.35% 0.83% 0.98% 1.95% 2.10%
20125 OUTEN 1,327 61.27% 34.89% (S) (S) 1.81% 1.96%
20227 OKORO 1,317 1.29% 95.75% (S) (S) 1.59% 0.91%
20309 ON 1,309 8.10% 2.14% 85.18% 0.00% 2.22% 2.37%
20421 OFLAHERTY 1,301 93.85% 1.46% (S) (S) 1.31% 2.61%
20458 OBERST 1,298 94.61% (S) 1.46% (S) 1.00% 2.23%
20512 OVIATT 1,293 94.66% (S) (S) (S) 0.93% 3.63%
20553 OCCHIPINTI 1,290 92.64% (S) 0.62% (S) 1.09% 5.43%
20574 OBRIANT 1,288 87.27% 7.22% 1.40% 0.85% 1.01% 2.25%
20818 OTTS 1,268 91.40% 4.57% (S) (S) 1.10% 2.05%
20926 ODOMS 1,259 8.82% 86.42% (S) (S) 2.46% 1.91%
20926 ORLOFF 1,259 91.66% (S) (S) 1.27% 3.10% 3.34%
20985 OKAMURA 1,254 4.70% (S) 72.97% (S) 12.92% 9.25%
21019 OLEJNICZAK 1,251 97.92% (S) (S) (S) 0.40% 1.04%
21048 ORF 1,249 97.36% (S) 0.40% (S) 1.28% 0.72%
21307 OATS 1,230 33.58% 53.01% 0.41% 7.64% 3.09% 2.28%
21330 OPOKU 1,228 1.95% 96.50% 0.00% 0.00% 0.98% 0.57%
21360 OTTERSON 1,226 94.29% 0.57% 1.06% 0.49% 1.71% 1.88%
21413 ONKEN 1,221 96.15% (S) 0.98% (S) 0.98% 1.80%
21459 OUIMET 1,218 94.83% (S) 0.74% (S) 1.48% 2.13%
21553 OSTROW 1,211 94.63% (S) 0.83% (S) 0.83% 3.39%
21568 OHANIAN 1,210 93.88% 0.00% 0.50% 0.00% 2.89% 2.73%
21583 OLLIE 1,209 20.43% 73.95% (S) (S) 2.65% 2.40%
21609 OCANAS 1,207 5.22% (S) 0.00% (S) (S) 94.03%
21700 OAKLAND 1,200 94.58% 0.75% (S) (S) 2.75% 1.50%
21717 OBYRNE 1,198 93.57% 0.50% 1.00% 0.00% 0.92% 4.01%
21759 OWNBEY 1,195 95.48% (S) 0.50% (S) 1.42% 1.92%
21790 OCKER 1,193 96.48% (S) 0.67% (S) 1.01% 1.26%
21926 OLCOTT 1,184 95.44% (S) 1.27% (S) 1.86% 1.18%
21926 OVERHOLSER 1,184 95.86% (S) 0.42% (S) 1.18% 2.20%
21972 OST 1,181 93.23% 0.42% 0.51% 1.27% 1.44% 3.13%
22026 OBERMAN 1,177 94.05% (S) 1.10% (S) 1.87% 2.55%
22069 OFFORD 1,174 30.83% 62.95% 1.11% 0.60% 2.64% 1.87%
22216 OLER 1,161 88.80% 4.39% (S) (S) 2.41% 3.36%
22246 OSINSKI 1,159 96.81% (S) (S) (S) (S) 2.42%
22421 OKON 1,148 66.81% 27.96% (S) (S) 2.00% 1.92%
22516 ORSO 1,142 72.42% 7.62% 0.44% 8.06% 4.20% 7.27%
22543 OSBOURN 1,140 93.33% 1.93% (S) (S) 1.67% 1.67%
22618 OGLES 1,135 89.25% 5.99% (S) (S) 2.11% 2.29%
22637 OSER 1,134 94.09% 1.06% 0.53% 0.62% 0.88% 2.82%
22689 OAKMAN 1,130 65.93% 29.38% (S) (S) 1.06% 2.65%
22689 OREGAN 1,130 95.22% (S) 1.42% (S) 0.88% 2.30%
22924 OKOYE 1,116 1.43% 95.07% (S) (S) 2.33% 0.81%
22978 ONSTOTT 1,113 92.99% (S) 0.81% (S) 1.08% 4.85%
23019 OAK 1,110 67.66% 0.90% 25.50% 0.45% 2.43% 3.06%
23084 OFORI 1,107 1.81% 94.58% (S) (S) 2.08% 0.99%
23100 OVERLAND 1,105 89.14% 1.27% 0.81% 3.53% 1.99% 3.26%
23167 OLAVARRIA 1,101 8.08% 0.54% 0.64% (S) (S) 90.37%
23185 ORSI 1,100 91.64% 0.45% 1.00% 0.00% 1.36% 5.55%
23205 OLAN 1,099 16.74% 2.46% 6.37% (S) (S) 74.07%
23251 OGLESBEE 1,096 89.69% 4.74% (S) (S) 1.37% 2.74%
23386 OHAIR 1,088 92.65% 1.19% (S) (S) 1.47% 3.58%
23500 OKONKWO 1,081 1.67% 94.91% (S) (S) 2.59% 0.74%
23515 OLARTE 1,080 6.20% (S) 19.81% (S) 1.67% 71.94%
23532 OREM 1,079 93.70% 1.85% 0.46% 0.65% 1.39% 1.95%
23647 ORLANDI 1,072 87.41% (S) 0.93% (S) 2.33% 8.49%
23662 OREGON 1,071 7.66% 1.96% (S) (S) 0.47% 89.82%
23691 OBESO 1,069 3.84% (S) 2.43% 0.47% (S) 93.17%
23737 ORENGO 1,066 7.69% 1.03% (S) (S) 0.56% 90.62%
23785 OLBERDING 1,063 96.99% (S) 0.47% 1.03% (S) 1.13%
23978 OOTEN 1,052 89.92% 6.18% 0.48% 0.95% 1.14% 1.33%
24012 OJA 1,050 90.67% 0.95% 1.90% 1.24% 2.48% 2.76%
24012 ORILEY 1,050 86.19% 5.62% 1.05% 1.71% 1.33% 4.10%
24031 OSTERHOUDT 1,049 94.28% (S) 0.67% (S) 1.43% 2.96%
24064 OERTEL 1,047 95.03% (S) 0.76% (S) 1.05% 2.58%
24075 OLENICK 1,046 95.89% (S) 0.96% (S) 0.57% 2.20%
24090 ONAN 1,045 95.31% 0.96% 0.57% 0.48% 1.44% 1.24%
24112 OVER 1,044 87.55% 6.23% (S) (S) 2.11% 3.35%
24237 OLD 1,035 94.20% 1.16% (S) (S) 1.35% 2.51%
24352 OLLISON 1,029 12.63% 81.15% (S) (S) 3.89% 1.94%
24352 ORD 1,029 92.13% 2.82% 0.97% 0.00% 1.94% 2.14%
24370 OKUN 1,028 94.55% 1.07% 1.17% (S) (S) 2.04%
24466 OTTAVIANO 1,023 93.45% 0.78% (S) (S) 0.59% 4.20%
24499 ORSAK 1,021 95.49% (S) (S) (S) 0.49% 3.13%
24572 OUIMETTE 1,017 94.10% (S) (S) (S) 1.87% 2.95%
24608 ORMISTON 1,015 96.06% (S) 0.59% (S) 1.87% 1.38%
24838 OSORTO 1,002 1.30% 0.90% (S) 0.00% (S) 97.60%
24855 OSORIA 1,001 3.90% 0.90% (S) 0.00% (S) 94.91%

Table Key

To help you understand the above table, below is a description of each column and what it represents.

  • Rank - The official rank of the name according to the US Census Bureau.
  • Count. Number of occurrences: Estimate of the number of people with the surname in the United States. (S) means the data was suppressed for privacy.
  • White. Non-Hispanic White Only: Percentage of people with a given surname who classified themselves as "non-hispanic white" (race)
  • Black. Non-Hispanic Black Only: Percentage of people with a given surname who classified themselves as "non-hispanic black" (race)
  • API. Non-Hispanic Asian & Pacific Islander Only: Percentage of people with a given surname who classified themselves as "non-hispanic Asian & Pacific Islander" (race)
  • AIAN. Non-Hispanic American Indian & Alaskan Native Only: Percentage of people with a given surname who classified themselves as "non-hispanic American Indian & Alaskan Native" (race)
  • 2+ Races. Non-Hispanic of 2 or More Races: Percentage of people with a given surname who classified themselves as "non-hispanic two or more races" (race)
  • Hispanic. Hispanic Origin: Percentage of people with a given surname who classified themselves as "Hispanic origin" (race)

Other Last Name Letters

To find all of the most popular last names by starting letter, you can choose a letter from the following list:

Last Names by Ancestry

If you want to get even more specific, we also have pages that will let you find last names beginning with O (or any other letter) based on a specific ancestry.

White

The links below will let you research white last names starting with each letter of the alphabet.

Black

The links below will let you research black last names starting with each letter of the alphabet.

Hispanic

The links below will let you research Hispanic last names starting with each letter of the alphabet.

Asian and Pacific Islander

The links below will let you research Asian and Pacific Islander last names starting with each letter of the alphabet.

American Indian and Alaskan Native

The links below will let you research American Indian and Alaskan Native last names starting with each letter of the alphabet.

Data Source(s)

All of the data on this page is sourced from the Decennial Census survey, from the United States Census Bureau.

Link To or Reference This Page

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If you found the data or information on this page useful in your research, please use the tool below to properly cite or reference Name Census as the source. We appreciate your support!

  • "407 Most Common Last Names Beginning with O". NameCensus.com. Accessed on June 2, 2023. https://namecensus.com/last-names/last-names-starting-with-o/.

  • "407 Most Common Last Names Beginning with O". NameCensus.com, https://namecensus.com/last-names/last-names-starting-with-o/. Accessed 2 June, 2023

  • 407 Most Common Last Names Beginning with O. NameCensus.com. Retrieved from https://namecensus.com/last-names/last-names-starting-with-o/.