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Home › Baby Names Directory › Billi

Billi

♀ Girl

How to Pronounce Billi

Pronounced BIL-ee /ˈbɪl.i/High

Meaning: Billi is an -i respelling of Billie, the feminine pet form linked to William (Germanic wil + helm, 'resolute protector') and to Wilhelmina. Given to girls, it reads as a breezy, informal short name.Medium

In 30 seconds: Billi is a spelling of Billie, the girls' short name from the William family, 'resolute protector' (said 'BIL-ee').
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Origin MediumEnglish, Germanic
MeaningBilli is an -i respelling of Billie, the feminine pet form linked to William (Germanic wil + helm, 'resolute protector') and to Wilhelmina. Given to girls, it reads as a breezy, informal short name.
U.S. rank (2020)#13727 ↘ Falling
2020 U.S. births6 girls (0.00% of U.S. girls)
Peak year1976
Total births (all-time)≈ 1,740
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Popularity in the U.S. · SSA data

peak 197619152020

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

Billi is a respelling of Billie, which began as a feminine diminutive tied to William, from Germanic wil, 'will,' and helm, 'protection' — 'resolute protector' — and to Wilhelmina. As a girls' name Billie gained real independence in the twentieth century, and the -i spelling gave it a casual, modern finish. It appeared from around 1915 and peaked in 1976.

A woman named Billi at its mid-seventies peak is now in her late forties. The name has the friendly, tomboyish charm of Billie and Tommie; it stayed uncommon in this spelling, so it feels individual, and it sits beside Billie, Willa and Wilhelmina. With Billie enjoying fresh attention, Billi has quiet revival potential.

Did you know? Billie became a bona fide girls' name in the twentieth century — think Billie Holiday — and Billi is its trimmed, -i-ending update.
Overall data confidence 62%
References — Billi — Spelling of Billie, feminine short form tied to William

Variations

BillieBillyBillye

Nicknames

BillLee

Famous Bearers

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If you like Billi…

Billie— the standard spelling Billi varies
Willa— a like feminine William-family name
Wilhelmina— the fuller feminine name behind the Billie nickname
Tommie— a same-style tomboyish girls' short name

Explore names like Billi

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Frequently Asked

What does the name Billi mean?

Billi is a respelling of Billie, a feminine short form tied to William, 'resolute protector.'

How do you pronounce Billi?

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

Is Billi a boy or girl name?

Billi is used here as a girl's name.

How popular is Billi?

Billi is an uncommon spelling of Billie that crested in the mid nineteen-seventies.

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