Isai
Isai was the 1139th most popular name for boys in 2025, given to 186 babies. Its best year was 2007, when it ranked 701st with 333 babies. Over the last ten years it has moved down 108 places. More babies were named Isai in the 2000s than in any other decade.
Meaning Not yet researched how we research meanings
- Rank in 2025
- #1,139 boys, up 55 places since 2020
- Babies in 2025
- 186boys
- Girls and boys
- Almost always a boy’s name2021–2025
- Peak year
- 2007333 babies
- Total since 1880
- 7,385babies recorded
Isai popularity since 1880
A few girls are given the name too: 45 since 1990, 11 in 2025.
| Year | Rank (boys) | Babies (boys) |
|---|---|---|
| 2025 | #1,139 | 186 |
| 2020 | #1,194 | 161 |
| 2010 | #872 | 241 |
| 2000 | #944 | 161 |
| 1990 | #1,167 | 87 |
| 1980 | #2,880 | 16 |
| 1970 | — | — |
| 1960 | — | — |
| 1950 | — | — |
| 1940 | — | — |
| 1930 | — | — |
| 1920 | — | — |
| 1910 | — | — |
| 1900 | — | — |
| 1890 | — | — |
| 1880 | — | — |
How popular is Isai, counting every spelling?
Isai is the most common spelling of a name family that ranked #1,052 for boys in 2025 once every spelling is counted together, compared with #1,139 for Isai on its own. Together these spellings went to 193 boys in 2025.
| Spelling | Babies 2025 | Official rank | Babies 2021–2025 |
|---|---|---|---|
| Isai | 186 | #1,139 | 918 |
| Isaih | 7 | #10,078 | 36 |
Spellings count together when they sound the same in American English and are used for the same sex; nicknames and forms that sound different (such as Theo and Theodore) are kept apart. How we group spellings.
How many kids will share the name Isai?
186 of the 3,606,400 babies born in the US in 2025 were named Isai (0.05 per 1,000 births). For a boy named Isai born in 2025, the chance that another child with the same name is in a class of 20 children the same age is under 1 in 50. If every grade liked the name as much as the 2025 babies do, only about one elementary school in 45 (of 430 pupils) would have a child named Isai.
Shares of all registered births (NCHS); classes assumed to be children born the same year. How we estimate this.
How old are people named Isai?
About 7,200 people born in the US named Isai are alive today, with a median age of 18; half are between 10 and 25. That makes Isai mostly worn by children and young adults.
Babies given the name each year (SSA) times the share of that birth year still alive (SSA life tables). Counts people born in the US only. Method.
Isai by state
How common Isai was among boys born in each state in 2021–2025. It is notably more common than nationally in Texas (2.4×), Arizona (2.1×), Washington (2.0×), Colorado (1.9×). In 34 states fewer than five boys a year got the name, too few for SSA to publish, so those states show as zero.
Names with a similar history
These names rose and fell in step with Isai: their share of US boys followed the most similar curve since 1880. If you like Isai, they share its era and feel.
Questions about the name Isai
How popular is the name Isai?
Isai was the 1139th most popular name for boys in 2025, given to 186 babies. Its best year was 2007, when it ranked 701st with 333 babies. Over the last ten years it has moved down 108 places. More babies were named Isai in the 2000s than in any other decade.
Is Isai a boy or girl name?
In 2021–2025, almost always a boy’s name given the name Isai in the US.
Where is Isai most popular?
In 2021–2025, Isai was most common in Texas (0.25 per 1,000 boys), followed by Arizona and Washington.