Tomasz
A masculine Polish name derived from the Hebrew name Thomas meaning "twin".
Name Census estimates that about 752 living Americans carry the first name Tomasz. The name is used almost exclusively for boys. The average person named Tomasz today is around 27 years old, and the year with the single highest number of Tomasz births was 1995 (29 babies).
This page is the full Name Census profile for Tomasz. Below you will find a gender breakdown showing how the name splits between male and female registrations, a year-by-year popularity chart stretching back to 1880, decade-level totals, the top US states for this name, its meaning and etymology, and a set of frequently asked questions with data-backed answers.
People living today
752
~ 1 in 455,790 Americans
Peak year
1995
29 babies that year
Average age
27
years old
2024 SSA rank
#10,771
Tracked since 1969
Popularity
Tomasz: popularity over time
The SSA tracks Tomasz from the 1960s through to the 2020s, spanning 7 decades of birth certificate data. The biggest single decade for the name was the 1990s, with 239 total registrations. Usage has dropped considerably from its 1990s peak. The most recent decade brought in only a fraction of the registrations that the name once attracted.
Babies born per year
Decades
Tomasz by decade
The table below breaks the full SSA timeline into ten-year windows. Each row shows how many male and female babies were given the name Tomasz during that decade, along with a combined total. This is useful for spotting eras where the name surged or retreated.
Geography
Where Tomasz' live
The SSA's state-level files cover 3 states and territories. Illinois, New York, Connecticut recorded the most babies named Tomasz, while Connecticut, New York, Illinois recorded the fewest. The average across all reporting states is about 103 registrations each.
Origin
Meaning and history of Tomasz
Tomasz is a masculine given name derived from the Aramaic name Thomas, which means "twin". It is a widely used name in Poland and other Slavic countries, where it has been popular for centuries.
The origins of the name can be traced back to the ancient Aramaic language, where it was used as a personal name during the time of Jesus Christ. In the New Testament, the name is given to one of the Twelve Apostles, who became known as "Doubting Thomas" due to his initial skepticism about the resurrection of Jesus.
As Christianity spread throughout Europe, the name Thomas became popular in various regions, taking on different spellings and pronunciations. In Poland, the name evolved into Tomasz, which has been a common name since the Middle Ages.
One of the earliest recorded instances of the name Tomasz dates back to the 12th century, when a Polish nobleman named Tomasz Piotr Dunin lived during the reign of Bolesław III Wrymouth, Duke of Poland. Over the centuries, several notable Poles have borne this name, including:
1. Tomasz Strzęmpka (c. 1198-1278), a Polish Dominican friar and theologian.
2. Tomasz Dolabella (c. 1570-1645), a Polish poet and playwright of the Baroque period.
3. Tomasz Zamoyski (1594-1638), a Polish nobleman, military commander, and art patron.
4. Tomasz Ossoliński (1793-1875), a Polish historian, bibliographer, and founder of the Ossolineum Library.
5. Tomasz Makowski (1908-1984), a Polish mathematician and logician known for his work in set theory and model theory.
These are just a few examples of the many notable figures throughout history who have borne the name Tomasz, reflecting its enduring popularity and rich cultural heritage in Poland and other Slavic regions.
Notable bearers
Famous people named Tomasz
People
Tomasz + last name combinations
How many people share a full name with Tomasz as the first name? Click a combination below to see the estimate, or search any pairing.
Related
Other names starting with T
Other first names starting with T with a similar number of bearers.
FAQ
Tomasz: questions and answers
How many people in the U.S. are named Tomasz?
Name Census puts the figure at roughly 752 living Americans. We arrive at this by taking every SSA birth registration for Tomasz going back to 1880 and adjusting each cohort for expected survival using CDC actuarial life tables. The result is an age-weighted living-bearer count, not a raw birth total. That works out to about 1 in 455,790 US residents.
Is Tomasz a common name?
We classify Tomasz as "Very Rare". It ranks above 88.1% of all first names in the SSA dataset by living bearers. Across the full history of the data, 771 babies have been registered with this name.
When was Tomasz most popular?
The single biggest year for Tomasz was 1995, when 29 babies received the name. The fact that the average living Tomasz is about 27 years old gives you a rough sense of which era contributed the most bearers who are still alive today.
Is Tomasz a male name?
Yes, 100.0% of people registered as Tomasz in the SSA data are male. You can see the full per-sex comparison in the gender distribution section above, which includes the latest year rank, birth count, and peak year for each sex.
Where does this data come from?
First-name figures come from the Social Security Administration's national baby name files, which cover every name on a birth certificate from 1880 to 2024. Living-bearer estimates layer in CDC actuarial life tables broken out by sex to account for mortality. The population baseline (342,754,338) is the Census Bureau's latest national estimate. You can read the full calculation on our methodology page.