Billi
a diminutive form of 'Billie', which is derived from 'William', meaning 'resolute protector'.
American origin · Unisex name
0% boys100% girls
#765US 2023
1.4kBirths / yr
Stable
1.7kAll-time births
📅 Since 191500.01% of births at peak
How to pronounce Billi
BILL·EE
/ˈbɪll.ˈiː/ · stress on BILL · 2 syllables
a diminutive form of 'Billie', which is derived from 'William', meaning 'resolute protector'.
American origin · Unisex name

What does Billi mean and where does it come from?

Billi is a modern take on the name Billie, often used as an affectionate nickname. It is commonly found in English-speaking countries like the United States and the United Kingdom. The name gained popularity in the 20th century and has been used by numerous notable personalities, including singer Bi

Cultural significance
Billi has been a cherished name across cultures, particularly in American-speaking communities, where it reflects values of a diminutive form of 'billie', which is derived from 'william', meaning 'resolute protector'..
Peak popularity
Reached #1302 in 1976 — currently #765 in the US.
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Related Reading
American-origin baby names with timeless appeal
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How else can you spell Billi?

Same sound, different look — useful if you want something slightly more distinctive

What middle names flow best with Billi?

Billi works best with short, strong middle names — one or two syllables keep the full name from becoming a mouthful

Billi Grace
Most popular combo · classic
Billi Rose
Floral · soft ending
Billi Mae
Sweet · timeless
Billi Claire
French influence · crisp
Billi Jane
Literary · strong
Billi Skye
Modern · airy feel
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Middle Names
The best middle names for Billi
Browse ideas →

How popular is Billi right now?

Holding steady — currently #765 in the US out of 135.5k tracked names

US Trend 19152023#765 · Top 0.56%
1965
1970
1975
1980
1985
1990
1995
2000
2005
2010
2015
2020
2021
2022
2023
YearUS RankBirthsvs Prior Year
2023#7651,435▲ up 5 · +1% births
2022#7701,415▲ up 5 · +2% births
2021#7751,385▲ up 12681 · +22983% births
2020#134566▼ down 1536 · -25% births
2015#119208▲ up 5229 · +60% births
2010#171495▼ down 6139 · -44% births
2005#110109▼ down 1063
2000#99479▼ down 4470 · -47% births
1995#547717▲ up 404 · +13% births
1990#588115▼ down 1720 · -21% births
1985#416119▼ down 2114 · -63% births
1980#204751▼ down 470 · -19% births
1975#157763▲ up 111 · +15% births
1970#168855▲ up 485 · +83% births
1965#217330

The story of Billi

Billi entered American naming records in 1915 and has been in use for over 109 years. With 1,745 total births recorded, Billi remains relatively uncommon. The name has grown more popular over time, rising from #4699 in 1915 to #765 in 2023. Billi is used for both genders: 100% female and 0% male.

Names that peaked alongside Billi in 1976:

Billi by decade

DecadeBirths
1910s5
1940s30
1950s149
1960s280
1970s643
1980s319
1990s184
2000s71
2010s58
2020s6
💎With 1,745 total births, Billi is an uncommon but established name.

What are good nicknames for Billi?

Common
BilBi

Common questions about the name Billi

What does the name Billi mean?
Billi means "a diminutive form of 'Billie', which is derived from 'William', meaning 'resolute protector'." — a name rooted in American tradition that carries both historical depth and timeless appeal. The meaning reflects values that have made this name endure across generations.
How popular is the name Billi?
Billi is currently ranked #765 as a baby name in the US and is holding steady in popularity, a reliable classic that parents consistently choose.
What is the cultural origin of Billi?
Billi originates from American tradition. American names tend to carry strong cultural heritage and have spread across the world through migration, literature, and religion over centuries.
How do you pronounce the name Billi?
Billi is a two-syllable name pronounced B IH1 L L IY1. The pronunciation is straightforward for English speakers, and the name reads clearly on paper — an important practical consideration for parents.
Is Billi more of a girl or boy name?
Billi is a genuinely unisex name used for both boys and girls. The unisex quality makes it particularly versatile for modern families.