Billi
A feminine name derived from the Spanish word for cat or kitten.
Name Census estimates that about 1,544 living Americans carry the first name Billi. The name is used almost exclusively for girls. The average person named Billi today is around 48 years old, and the year with the single highest number of Billi births was 1976 (84 babies).
This page is the full Name Census profile for Billi. 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
1.5K
~ 1 in 221,991 Americans
Peak year
1976
84 babies that year
Average age
48
years old
2006 SSA rank
#12,255
Tracked since 1915
Gender
Gender distribution for Billi
Out of the 1,745 babies given the name Billi since 1880, 99.7% were registered as female. The name sits firmly on the female side of the spectrum, with only a handful of male registrations across the entire dataset.
Billi as a male name
- Ranked #12,255 in 2006
- 5 male births in 2006
- Peak: 2006 (5 births)
Billi as a female name
- Ranked #13,727 in 2020
- 6 female births in 2020
- Peak: 1976 (84 births)
Popularity
Billi: popularity over time
The SSA tracks Billi from the 1910s through to the 2020s, spanning 10 decades of birth certificate data. The biggest single decade for the name was the 1970s, with 643 total registrations. Usage has dropped considerably from its 1970s peak. The most recent decade brought in only a fraction of the registrations that the name once attracted.
Babies born per year
Decades
Billi 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 Billi during that decade, along with a combined total. This is useful for spotting eras where the name surged or retreated.
Geography
Where Billis live
The SSA's state-level files cover 12 states and territories. Ohio, Pennsylvania, Iowa recorded the most babies named Billi, while West Virginia, Illinois, California recorded the fewest. The average across all reporting states is about 19 registrations each.
Origin
Meaning and history of Billi
The name Billi has its origins in the Germanic languages, where it is derived from the Old German word "bili," meaning "little or endearing." This diminutive form of a name was commonly used as a pet name or nickname in medieval times.
One of the earliest recorded instances of the name Billi can be found in the Nibelungenlied, a famous German epic poem from the 13th century. Here, it appears as a nickname for the character Hildebrand, a warrior in the service of Dietrich von Bern.
In the 14th century, Billi was also recorded as the name of a German noblewoman, Billi von Rothenburg, who was known for her charitable works and philanthropic endeavors in the city of Rothenburg ob der Tauber.
During the Renaissance period, the name Billi gained some popularity in Italy, where it was likely influenced by the Italian word "bello," meaning "beautiful." One notable figure from this time was Billi Brugnoli, a 15th-century Italian painter known for his frescoes in the Basilica of Sant'Antonio in Padua.
In the 17th century, the name Billi appeared in English literature, such as in the works of the playwright Ben Jonson, who used it as a character name in his comedies. Another notable figure from this period was Billi Cantrell, an English composer and lutenist who served as a court musician to King Charles I.
In more recent times, the name Billi has been used by several notable individuals, including Billi Gordon, a 19th-century Scottish author and poet; Billi Theisen, a 20th-century German actress known for her roles in silent films; and Billi Harper, an American jazz singer and songwriter active in the mid-20th century.
While the name Billi has its roots in the Germanic languages and has been used throughout various European cultures over the centuries, it has remained a relatively uncommon name, often given as a diminutive or nickname rather than a formal first name.
People
Billi + last name combinations
How many people share a full name with Billi as the first name? Click a combination below to see the estimate, or search any pairing.
Related
Other names starting with B
Other first names starting with B with a similar number of bearers.
FAQ
Billi: questions and answers
How many people in the U.S. are named Billi?
Name Census puts the figure at roughly 1,544 living Americans. We arrive at this by taking every SSA birth registration for Billi 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 221,991 US residents.
Is Billi a common name?
We classify Billi as "Rare". It ranks above 92.6% of all first names in the SSA dataset by living bearers. Across the full history of the data, 1,745 babies have been registered with this name.
When was Billi most popular?
The single biggest year for Billi was 1976, when 84 babies received the name. The fact that the average living Billi is about 48 years old gives you a rough sense of which era contributed the most bearers who are still alive today.
Is Billi a female name?
Yes, 99.7% of people registered as Billi in the SSA data are female. 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.