Isai
Boy name · #1139 in 2025 · Rare
How old is the name Isai? In official American birth records, Isai has been tracked continuously since 1966, giving it 59 years of documented American history.
Isai is currently the #1139 boy name in the United States — 186 babies received it in 2025. A decade ago it stood at #1030, so the name has been falling over the past ten years. Roughly one in every 9,677 boys born in 2025 was named Isai.
Babies named Isai per year. Source: Official national birth records.
The 59-year story
Isai first appears in the Social Security records in 1966, when 6 boys received the name. Its peak came in 2007, when 333 boys were named Isai — good for #700 that year. Today's parents encounter it on its way down the popularity curve, which for many parents is exactly the appeal. Following the curve matters more than today's snapshot: a name's position on its rise-peak-decline arc is the best predictor of how common it will feel in a kindergarten class five years from now.
Unlock the 5-year forecast and compare Isai against up to 5 other names.
Uniqueness: will there be another Isai in class?
On our rarity read — which blends how common Isai is today with its five-year momentum — the name reads as "rare". A high score means genuine rarity — your Isai will likely be the only one in the room, with the occasional spelling-out as the price.
Where Isai is most common
Geography matters for names, and Isai is no exception. Adjusted for how many boys are born in each state, Isai is most common in TX (0.2 per 1,000), CA (0.2 per 1,000), NY (0.1 per 1,000) — against a national average of about 0.1 per 1,000 boys. These are per-capita rates, so they show where Isai is a genuine regional favorite rather than just where the most babies are born.
Names like Isai
Statistically, parents drawn to Isai tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Esai, Abisai, Jai, Sai, and Jovani.
EsaiAbisaiJaiSaiJovaniIssacJabariMekhi
Rank history (last 25 years)
| Year | Babies named Isai | Rank |
|---|---|---|
| 2025 | 186 | #1138 |
| 2024 | 205 | #1062 |
| 2023 | 199 | #1080 |
| 2022 | 160 | #1228 |
| 2021 | 168 | #1170 |
| 2020 | 161 | #1194 |
| 2019 | 207 | #1009 |
| 2018 | 193 | #1052 |
| 2017 | 195 | #1029 |
| 2016 | 185 | #1065 |
| 2015 | 197 | #1030 |
| 2014 | 168 | #1133 |
| 2013 | 191 | #1020 |
| 2012 | 212 | #949 |
| 2011 | 237 | #881 |
| 2010 | 241 | #872 |
| 2009 | 270 | #816 |
| 2008 | 310 | #738 |
| 2007 | 333 | #700 |
| 2006 | 305 | #712 |
| 2005 | 274 | #737 |
| 2004 | 275 | #702 |
| 2003 | 243 | #741 |
| 2002 | 245 | #724 |
| 2001 | 206 | #812 |
Frequently asked questions
How old is the name Isai?
In official American birth records, the name Isai first appeared in 1966 (over 59 years ago), when 6 newborn boys received the name. It has been tracked in modern national records for 59 years.
Is Isai a popular boy name?
Isai ranked #1139 among boys in 2025 with 186 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #1030.
When was the name Isai most popular?
Isai peaked in 2007, when 333 American boys received the name (ranked #700 that year). Since 2007 the name has declined from that high.
How rare is the name Isai?
In 2025, roughly 1 in 9,677 newborn American boys was named Isai. On our rarity scale (rarity blended with momentum) we classify it as "rare".
Data source: Official American birth records, 1880–2025, national and state files. Counts reflect registered birth records for American families.