Baby Names US
girls' name ★ peaked 1976

Billi

Gender Girl Rank 2025 Below top lists

A female given name from the Germanic languages, derived from Williamina or Wilhelmina, or directly from the masculine Billy.

Rank 2025
–
among girls
Babies in 2025
<5
named Billi
How common
–
girls born in 2025
Peak year
1976
84 babies
All-time total
1,746
#5,170 all-time among girls
First recorded
1915
in Social Security records

Billi popularity over time

1,746 babies have been named Billi since 1915, according to official Social Security records. Switch measure to see births per year or the yearly rank.

Measure
Births per 1,000 babies of that sex, comparable across eras
0.020.040.060.0818801900192019401960198020002020GirlsBoys
GirlsBoys

By decade. Change compares yearly averages, so the current partial decade is on equal footing. Best rank is the name's best yearly rank within the decade.

Decade Girls Boys Total Per year Change Best rank
1880s – – – – – –
1890s – – – – – –
1900s – – – – – –
1910s 5 – 5 1 – #4,355
1920s – – – – – –
1930s – – – – – –
1940s 30 – 30 3 – #3,919
1950s 149 – 149 15 +397% #2,435
1960s 280 – 280 28 +88% #1,689
1970s 643 – 643 64 +130% #1,297
1980s 320 – 320 32 -50% #1,888
1990s 184 – 184 18 -43% #4,130
2000s 66 5 71 7 -61% #9,143
2010s 58 – 58 6 -18% #11,540
2020s (to 2025) 6 – 6 1 -83% #13,738

The story of Billi

Billi is not currently in use for newborns in the United States: fewer than five babies received the name in 2025. Its story lives in the historical record below.

Since 1915, 1,746 American babies have been named Billi. Its peak came in 1976, when 84 newborns received the name, the signature sound of the 1970s.

The chart above shows the full history: the popularity view (births per 1,000 babies) is the honest comparison across generations, since total US births have changed enormously since 1880. Switch to the rank view to see where Billi stood among all girls' names in any year, or use the compare tool to plot it against other names.

How old are people named Billi?

The median living Billi is about 49 years old; half are between 40 and 55. An estimated 1,600 people named Billi are alive in the United States today.

median 49 020406080100

Estimated from births per year and Social Security period life tables; an approximation of the living age distribution, by age in years.

Billi year by year

Every year since 2001, and five-year steps back to 1880. Rank is within each sex.

Year Girls Girls rank Boys Boys rank
2025 – – – –
2024 – – – –
2023 – – – –
2022 – – – –
2021 – – – –
2020 6 #13,738 – –
2019 8 #11,540 – –
2018 – – – –
2017 5 #16,283 – –
2016 7 #13,119 – –
2015 8 #12,017 – –
2014 6 #14,876 – –
2013 7 #13,406 – –
2012 5 #17,319 – –
2011 7 #13,592 – –
2010 5 #17,443 – –
2009 5 #17,737 – –
2008 – – – –
2007 5 #18,061 – –
2006 – – 5 #12,257
2005 9 #11,060 – –
2004 8 #11,774 – –
2003 11 #9,143 – –
2002 10 #9,591 – –
2001 9 #10,230 – –
2000 9 #10,015 – –
1995 17 #5,475 – –
1990 15 #5,861 – –
1985 19 #4,140 – –
1980 51 #2,045 – –
1975 63 #1,571 – –
1970 55 #1,682 – –
1965 30 #2,159 – –
1960 11 #3,938 – –
1955 8 #4,401 – –
1950 9 #3,689 – –
1945 6 #4,069 – –
1940 – – – –
1935 – – – –
1930 – – – –
1925 – – – –
1920 – – – –
1915 5 #4,355 – –
1910 – – – –
1905 – – – –
1900 – – – –
1895 – – – –
1890 – – – –
1885 – – – –
1880 – – – –

Frequently asked questions

Quick answers about Billi, drawn from the same Social Security data as the charts above.

How old is the average Billi?

The median living Billi is about 49 years old. Half of all living Billis are between 40 and 55 years old.

How many people named Billi are alive today?

An estimated 1,600 people named Billi are alive in the United States, based on 1,746 recorded births and Social Security life tables.

What does the name Billi mean?

A female given name from the Germanic languages, derived from Williamina or Wilhelmina, or directly from the masculine Billy.

How popular is the name Billi in 2025?

Billi did not appear in the 2025 Social Security data, which means fewer than five babies received the name that year.

How many people are named Billi?

1,746 babies have been named Billi in the United States since 1915, based on Social Security card applications.

When was the name Billi most popular?

Billi peaked in 1976, when 84 newborns received the name.

Is Billi a boy or girl name?

Billi is overwhelmingly a girl's name: 100% of babies with the name.

Is the name Billi rising or falling?

Billi is declining, less popular now than a decade ago.

Names like Billi

Names that sound and feel close to Billi: shared sounds, similar era, similar popularity. Each links to its full history.

Compare Billi with similar names → More names starting with B →