Rein
Rein is given to both girls and boys: 12 girls and 6 boys were given it in 2025 (#8,749 among girls’ names and #11,701 among boys’, #11,279 among all names counting both); 278 Americans have been recorded with it since 1953 (Social Security Administration, published May 2026).
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Rein by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Rein?
#11,701 among boys’ names, 2025
Rein rose from #11,782 in 2015 to #11,701 in 2025 among boys’ names; its share of boys born rose from 3.1 to 3.5 per million.
27 babies in 2023, the peak
Rein peaked in 2023, when 27 babies were given it (12 boys, #7,199 among boys’ names). The 18 births of 2025 (girls and boys) are 67% of that peak.
Births by sex.
| Year | Girls | Girls’ rank | Boys | Boys’ rank |
|---|---|---|---|---|
| 2025 | 12 | #8,749 | 6 | #11,701 |
| 2024 | under 5 | 14 | #6,404 | |
| 2023 | 15 | #7,559 | 12 | #7,199 |
| 2022 | 8 | #12,004 | 9 | #8,833 |
| 2021 | 13 | #8,367 | 7 | #10,543 |
| 2020 | 8 | #11,908 | 5 | #13,608 |
| 2019 | 9 | #11,191 | 8 | #9,554 |
| 2018 | 6 | #15,251 | 7 | #10,488 |
| 2017 | 8 | #12,493 | 5 | #13,805 |
| 2016 | 8 | #12,639 | 9 | #8,660 |
Every recorded year (24)
| Year | Girls | Girls’ rank | Boys | Boys’ rank |
|---|---|---|---|---|
| 2015 | 8 | #12,755 | 6 | #11,782 |
| 2014 | 10 | #10,770 | 8 | #9,426 |
| 2013 | under 5 | 5 | #13,630 | |
| 2012 | under 5 | 5 | #13,771 | |
| 2009 | 5 | #19,571 | under 5 | |
| 2007 | 5 | #19,855 | under 5 | |
| 2006 | 6 | #16,667 | 8 | #9,367 |
| 2004 | under 5 | 5 | #12,802 | |
| 2003 | under 5 | 8 | #8,445 | |
| 2002 | under 5 | 7 | #9,162 | |
| 1998 | under 5 | 6 | #9,375 | |
| 1993 | under 5 | 5 | #9,846 | |
| 1989 | under 5 | 6 | #7,686 | |
| 1953 | under 5 | 6 | #3,710 |
Ranks: girls’ names and boys’ names ranked separately in each year’s SSA file; “under 5” is a year SSA did not list the name for that sex.
Is Rein a boy’s or a girl’s name?
Of the 278 Americans recorded as Rein, 44% are girls and 56% boys.
Years with fewer than 20 babies given the name are left blank.
Girls and boys named Rein: the SSA national file counts each sex separately.
How many people are named Rein, and how old are they?
An estimated 273 Americans named Rein and born in the U.S. are alive in 2026 (98% of everyone recorded); the median is 8 years old and half are between 4 and 14. An estimate from SSA’s births and life tables, not a count.
The 2020 Census counted 462 people named Rein (146 women and girls, 316 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 170 born in the U.S. The Census count is 2.7 times that prediction. Possible reasons: the Census records the name people give, which for many is the short form Rein rather than the name on their birth record, and it counts people born abroad, whom SSA’s files leave out.
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 8 names spelled alike, given to 8,141 babies since 1880, Rein is the eighth most given (3.4% of them). In 2025 it was given to 18 of their 501 babies (3.6%), the sixth most given that year.
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 Rein
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 Rein and names like it
- Compare Rein and RenBirths, ranks, peak and the living estimate side by side.
- The most given names of the 2020sRein peaked in 2023.
- The top names of 2023The year the most babies were named Rein.
- The names of Generation AlphaMost people named Rein alive today were born 2013-2025.
- Names starting with RMost given first.