9,383births recorded
6Countries
2Variants
2023Peak · Belgium
#1138United States 2025
Isai is a boy name family recorded 9,383 times in 6 countries since 1894. It ranks highest today in the United States (#1138 in 2025). Its all-time peak was in Belgium in 2023, at 12.6 births per 100,000.
Popularity by country
Births per 100,000 newborns, all forms of the name combined.
Which form wins where
Births per 100,000 newborns for each form, in the selected country.
All forms of Isai
| Variants | Language | Total births | Country | Latest rank | Peak year | 10-year trend |
|---|---|---|---|---|---|---|
| Isai | English | 7,385 | 🇺🇸 United States | #1138 | 2007 | ▲ 12 % |
| Isai | English | 285 | 🇫🇷 France | #2087 | 2025 | ▲ 279 % |
| Isai | English | 166 | 🇦🇷 Argentina | #1721 | 2015 | new |
| Isai | English | 25 | 🇧🇪 Belgium | #1199 | 2023 | – |
| Isai | English | 6 | 🇪🇸 Catalonia | – | 2014 | – |
| Isai | English | 6 | 🏴 England & Wales | – | 2024 | – |
| Isaih | English | 1,510 | 🇺🇸 United States | #9714 | 1999 | ▼ 59 % |
How we grouped these names
- Isai ↔ Isaih — spelling variant
Questions about Isai
How popular is the name Isai?
In 2025 it ranked #1138 in the United States. Official registers record 9,383 births across 6 countries.
What is Isai in other languages?
Isaih (English).
When was Isai most popular?
It peaked in Belgium in 2023, at 12.6 births per 100,000.
Is Isai a boy or a girl name?
In official birth registers, Isai is a boy name.