Isac
How to say it: ee-ZAK · /iˈzak/
Hebrew 'he will laugh' - French variant spelling of Isaac, biblical patriarch name.
Isac was the 49th most popular boys’ name in the United States in 2025, given to 22 babies (Social Security Administration). Its busiest decade was the 2000s, its births are down about 41% in ten years, and it is projected to slip to #72 by 2030.
Updated · SSA 2025 data, published May 2026 · Insee 2025 data, published July 2026 · How we compute these figures
Key facts
| Rank among boys’ names, 2025 | #49 |
|---|---|
| Babies born in 2025 | 22 |
| Share of births | 1 in 524 |
| Peak decade | 2000s |
| Change over 10 years | −41% |
| Projected rank for 2030 (estimate) | #72 |
| In France, 2025 | #9 among boys’ names, 60 births |
Sources: Social Security Administration (SSA), Insee (France). How we compute these figures.
Its life, decade by decade
Isac peaked in the 2000s and is less common today.
What goes with it
Nicknames
- Isa
- Zac
Honouring a Isac in the family
In the classroom
In a class of 25 children born in 2025, the chance that another child is called Isac is about 1 in 22.
Around the world
This spelling is used in Danish, English, French, Hebrew, Norwegian, Portuguese, Swedish.
In France: #9 for boys in 2025.
Famous people named Isac
- Isac Elliot (born 2000)Finnish pop singer, songwriter, dancer and actor
- Isac Lidberg (born 1998)Association football player
- Isac Santos (born 1990)Brazilian volleyball player
From Wikidata and Wikipedia
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