Isaac
How to say it: EYE-zik · /ˈaɪzək/
From Hebrew Yitzhak meaning 'he will laugh' or 'laughter'; son of Abraham in scripture.
Isaac was the 49th most popular boys’ name in the United States in 2025, given to 5,953 babies (Social Security Administration). Its busiest decade was the 2010s, 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 | 5,953 |
| Share of births | 1 in 524 |
| Peak decade | 2010s |
| Change over 10 years | −41% |
| Projected rank for 2030 (estimate) | #72 |
| In France, 2025 | #9 among boys’ names, 2,715 births |
Sources: Social Security Administration (SSA), Insee (France). How we compute these figures.
Its life, decade by decade
Held in steady use, Isaac reached its height in the 2010s. Remaining near that height, more slipping seems on the way.
What goes with it
Breathy and crisp together, Isaac carries biblical warmth. Ike offers a short form, while Elias shares its style.
Middle names that flow with Isaac →
Nicknames
- Ike
- Zac
Honouring a Isaac in the family
In the classroom
In a class of 25 children born in 2025, the chance that another child is called Isaac is about 1 in 22.
Around the world
This spelling is used in Danish, English, French, Hebrew, Norwegian, Spanish, Swedish.
In France: #9 for boys in 2025.
England and Wales: #36. Ireland: #104.
Famous people named Isaac
- Isaac Newton (1643–1727)English mathematician and physicist
- Isaac Asimov (1920–1992)American writer and biochemist
- Isaac Herzog (born 1960)President of Israel since 2021
From Wikidata and Wikipedia
Keep exploring
In the same lists
Find names you'll both love, starting with Isaac
The one-minute style quiz.