Billie

What Billie means

Diminutive of William, meaning “will + helmet”

diminutive of William || From Middle English William, from Anglo-Norman Willame, from Old High German Willahelm, from Proto-Germanic *Wiljahelmaz (> Latin Gulielmus), from Proto-Germanic *wiljô (“will”) + *helmaz (“helmet”), ultimately from the Proto-Indo-European

Source: Wiktionary, “Billie” (revision 93143404) and “William” (revision 94595525), CC BY-SA 4.0. Quoted from the etymology; we don’t write our own.

How popular is Billie?

US: Rising: up from #2012 in 2015. England & Wales: Rising: up from #432 in 2015.

Biggest US share so far: 1930, when 3,241 girls got the name (#79 that year). First in the US records in 1886.

How common

• About 1 in 3,930 baby girls in the US in 2025
• About 1 in 765 baby girls in England and Wales in 2025
• About 1 in 407 baby girls in Scotland in 2025

“1 in N” divides by all listed births for that sex. The US list leaves out names given to fewer than 5 babies, and the UK lists leave out names given to 2 or fewer, so the real figure is a little rarer than shown.

Where in the US

Most popular in ID (1.12 per 1,000 girls), MS (0.9 per 1,000 girls), UT (0.59 per 1,000 girls) in 2025.

SSA state data, 2025. Share of all listed girls born in each state.

US vs UK

Billie is #691 in the US and #151 in England & Wales (2025).

Same sex as this page (girls). SSA (US), ONS (England and Wales), NRS (Scotland).

Boy or girl?

In 2025, 96.9% of US babies named Billie were girls.

Counts below the publishing threshold (US 5, UK 3) are not included.

Other spellings

Other spellings parents chose in 2025

• Baylie28 US
• Bailie10 US

Names that sound the same and differ by a letter or two, with baby counts for the same sex. US and E&W counts.

If you like Billie

Girls

• Robin#704Diminutive of Robert, meaning “shining glory”^*
• Astrid#376Danish, from Old Norse Ástríðr, meaning “god + beautiful, originally…^*
• Drew#705Diminutive of Andrew, meaning “manly”^*
• Louisa#694Form of Louis, meaning “loud; famous + battle”^*
• Amalia#566“vigor, bravery”^*
• Anne#619Editor’s note Peaked in the US in 1959, with 5,745 babies; 472 in 2025

For a brother

• Robin#703Diminutive of Robert, meaning “shining glory”^*
• Walter#251“ruler + army, host”^*
• Frederick#435“peace king, peaceful ruler”^*
• Lewis#433Same root as Louis, meaning “loud; famous + battle”^*
• Archie#301“anti-aircraft artillery”^*
• Warren#240“river, water”^*

Picked from the US top 1,000 in 2025: names Wiktionary also files under Germanic, whose US popularity since 1990 rose and fell most like Billie’s. Rank is US 2025.