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Home › Baby Names Directory › Billie

Billie

♂ Boy

Pronounced BIL-ee /ˈbɪl.i/High

Meaning: A pet form of William — from the Germanic wil, 'will; resolve', + helm, 'helmet; protection', hence 'resolute protection'; used for both sexes; here for boysLow

In 30 seconds: Resolute protection: Billie is a pet form of William. Crisp, retro, and warm. Used for both sexes (here for boys).
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Origin LowGermanic
MeaningA pet form of William — from the Germanic wil, 'will; resolve', + helm, 'helmet; protection', hence 'resolute protection'; used for both sexes; here for boys
U.S. rank (2025)#6502 ↗ Rising
2025 U.S. births13 boys (0.00% of U.S. boys)
Peak year1930
Total births (all-time)≈ 31,637

Popularity in the U.S. · SSA data

peak 193018802025

U.S. births per year (Social Security Administration, 1880–present). Pink marker = peak year.

SSA data updated May 2026. How we source & verify this data.

History & Origin

Billie is a pet form of William — from the Germanic wil, 'will; resolve', + helm, 'helmet; protection', hence 'resolute protection'. Used for both sexes, here for a boy (slug distinguished; said 'BIL-ee').

In the U.S. it appears for both sexes. Rare today, resolute-protection at the root, and retro.

Did you know? William joins the Germanic wil, 'will', and helm, 'protection', hence 'resolute protection' — Billie is a crisp pet form, used for both sexes (here for a boy; said 'BIL-ee').
Overall data confidence 40%
References — William — pet form; unisex

Variations

BillyBillWilliam

Nicknames

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Famous Bearers

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If you like Billie…

Billy— a kin spelling
Willie— a fellow William pet-name
Bobby— a sound-neighbor retro -y boys' name
Johnny— a companion retro -y boys' name

Explore names like Billie

By themeunisexgermanicnickname-nameretro
By meaningProtector

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Frequently Asked

What does the name Billie mean?

Billie is a pet form of William — Germanic 'resolute protection'; used for both sexes; here for a boy.

How do you pronounce Billie?

It's said BIL-ee /ˈbɪl.i/ — two syllables, stress on the first.

Is Billie a boy or girl name?

Billie is used for both sexes; this page covers its use as a boy's name.

How popular is Billie?

Billie is a rare name today for boys, retro.

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