Isais
Isais was given to 7 boys in 2025, #10,075 among boys’ names; 208 Americans have been recorded with it since 1980 (Social Security Administration, published May 2026).
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Isais by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Isais?
#10,075 among boys’ names, 2025
Isais fell from #9,957 in 2015 to #10,075 in 2025 among boys’ names, although its share of boys born rose from 3.7 to 4.1 per million.
14 babies in 2009, the peak
Isais peaked in 2009, when 14 boys were given it, #6,224 among boys’ names. The 7 births of 2025 are 50% of that peak.
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 2025 | 7 | #10,075 | 4.1 |
| 2024 | 5 | #13,027 | 2.9 |
| 2021 | 10 | #7,804 | 5.7 |
| 2017 | 8 | #9,165 | 4.3 |
| 2016 | 6 | #11,248 | 3.2 |
| 2015 | 7 | #9,957 | 3.7 |
| 2014 | 6 | #11,248 | 3.1 |
| 2013 | 10 | #7,732 | 5.3 |
| 2012 | 11 | #7,226 | 5.8 |
| 2011 | 9 | #8,318 | 4.7 |
Every recorded year (27)
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 2010 | 7 | #10,072 | 3.6 |
| 2009 | 14 | #6,224 | 7.1 |
| 2008 | 7 | #10,290 | 3.4 |
| 2007 | 12 | #6,806 | 5.8 |
| 2006 | 7 | #9,967 | 3.4 |
| 2005 | 9 | #7,887 | 4.5 |
| 2004 | 7 | #9,300 | 3.5 |
| 2003 | 5 | #11,550 | 2.5 |
| 2002 | 6 | #9,847 | 3.1 |
| 1999 | 10 | #6,207 | 5.2 |
| 1998 | 8 | #7,098 | 4.2 |
| 1997 | 9 | #6,281 | 4.8 |
| 1996 | 5 | #9,573 | 2.6 |
| 1995 | 5 | #9,399 | 2.6 |
| 1993 | 6 | #8,024 | 3.1 |
| 1992 | 6 | #7,832 | 3.0 |
| 1980 | 6 | #5,824 | 3.4 |
Ranks and shares: boys’ names in each year’s SSA file; share of all boys SSA recorded that year.
Is Isais a boy’s or a girl’s name?
Isais has been recorded only for boys: SSA lists no girls with the name in 27 years of records (it lists a name only in years with 5 or more babies of a sex).
Girls and boys named Isais: the SSA national file counts each sex separately.
How many people are named Isais, and how old are they?
An estimated 204 Americans named Isais and born in the U.S. are alive in 2026 (98% of everyone recorded); the median is 18 years old and half are between 13 and 27. An estimate from SSA’s births and life tables, not a count.
The 2020 Census counted 582 people named Isais (7 women and girls, 575 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 184 born in the U.S. The Census count is 3.2 times that prediction. Possible reasons: the Census counts people born abroad, whom SSA’s files leave out, and it records the name people give, which SSA may have recorded under another spelling or as part of a compound name.
Living estimate: SSA births carried forward with the survival rates in SSA’s cohort life tables (2024 Trustees Report) for each birth year and sex. How the estimate is made. Count: Census Bureau, first names in the 2020 Census (released April 14, 2026; names reported 100 or more times, with the Bureau’s disclosure-avoidance adjustment).
Names spelled alike
Of these 3 names spelled alike, given to 19,028 babies since 1880, Isais is the second most given (1.1% of them). In 2025 it was given to 7 of their 767 babies (<1%), again the second most given.
Spelled alike: names in the SSA national file with the same pattern of letters and sounds and at most two letters apart, and Wiktionary’s listed forms; births since 1880 and in 2025, and each name’s peak year, from the SSA national file, published May 8, 2026. Some are separate names, not spellings of one.
Names that rose and fell in the same decades as Isais
Names whose births rose and fell across the same decades, measured on each decade’s share of births.
Similar histories: each decade’s share of births, from the SSA national file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
More about Isais and names like it
- Compare Isais and IsaiasBirths, ranks, peak and the living estimate side by side.
- The most given names of the 2000sIsais peaked in 2009.
- California’s most given namesThe state where SSA recorded the most babies named Isais since 1910.
- The top names of 2009The year the most babies were named Isais.
- The names of Generation ZMost people named Isais alive today were born 1997-2012.
- Names starting with IMost given first.