Unisex name · since 1974
Rei
550 babies named Rei in U.S. Social Security records since 1974, with the highest year being 2020. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
- #11,175 of 72,339
- all-time among girls
- #5,287 of 17,297
- 2025 SSA year
- 550
- born since 1974
- 2010s
- peak decade
550 babies have been named Rei since 1974, making it today's #5287 unisex name.
According to the U.S. Social Security Administration, Rei has been recorded 550 times among girls since 1974, currently ranked #5287 nationally and more common than 69% of girls, with its heaviest use in the 2010s. This profile covers year-by-year birth trends, decade totals, and state-level distribution, all derived directly from SSA birth-registration files spanning 1974 to 2025.
- #11,175 of 72,339 all-time among girls
- #5,287 of 17,297 2025 SSA year
- 550 born since 1974
- 2010s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Rei ranks #11,175 of 72,339 girls' names by all-time recorded births (highest first) and #5,287 of 17,297 among girls' names in 2025. 550 born since 1974, peaking in the 2010s.
- #11,175 of 72,339
- all-time among girls
- #5,287 of 17,297
- 2025 SSA year
- 550
- born since 1974
- 2010s
- peak decade
Rei's 550 recorded births place it above 84.54% of the 72,339 girls names in the full SSA archive.
The state file records this name in 4 jurisdictions, led by California.
How Rei compares
550 Top 43% higher than 57% of 17,297 names currently given to girls
Based on all-time total births among currently-ranked girls names. Names with fewer occurrences are grouped into wider buckets on the right.
Source U.S. Social Security Administration, national baby name data
How the numbers stack up
Rei's all-time total is 46% above the median girls name, and Olivia still leads by a wide margin.
| Metric | Rei | Median girls name (Kyann) | #1 girls name (Olivia) |
|---|---|---|---|
| All-time total births | 550 | 376 | 567,345 |
| Peak-year births | 48 | 21 | 19,840 |
Rei's usage pattern, beyond the headline number
Splitting Rei's full recorded timeline at 2009, 74% of its total births fall in the more recent half of the record versus 26% in the earlier half -- usage has skewed toward the present, not a one-decade spike. Its quietest year on record was 1974, with just 5 recorded births -- worth weighing against the 2020 peak of 48 to see the full range of the name's swing in popularity.
Rei popularity over time - girls
Annual U.S. births registered with the Social Security Administration · 1974–2025
- Peak year (2020)
- 48
- Annual births at peak, across 52 years of records
Rei popularity over time - boys
478 total births recorded since 1987 (Rei as boys' name)
Rei by decade
2010s is the heaviest window (217 births, 39% of the file).
2010s was Rei's strongest decade.
217 babies received the name during that ten-year window, about 39% of all-time use.
Rei births by decade
Total births in each ten-year window
- 1970s 5
1970s
5 births
- 1980s 20
1980s
20 births
- 1990s 27
1990s
27 births
- 2000s
2000s
101 births
- 2010s
2010s
217 births
- 2020s
2020s
180 births
What this shows Peak: 2010s at 217 births (39% of all-time use).
How Rei compares to similarly-sized names
Years in SSA records vs. share of all-time use concentrated in the single peak year, among 15 girls names closest to Rei's total volume
Rei by state
Where Rei concentrates geographically, total births since 1974
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | California | | 93 | 16.9% |
| #2 | New York | | 16 | 2.9% |
| #3 | Pennsylvania | | 5 | 0.9% |
| #4 | Texas | | 5 | 0.9% |
93 of 550 births nationwide. Compared to a flat distribution across 4 reporting states.
Frequently Asked Questions
How popular is the name Rei? ▼
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What to do with Rei's data
- Rei's usage has stayed within range of its 2010s decade-level peak (217 total births) through the 2020s (180) -- a comparatively stable name, not a fading trend.
- California records the most Reis (93 births) -- see the full state breakdown if geography matters to your decision. California names
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Rei
Nearby Names Like Rei
Names with a similar sound, spelling, or feel to Rei
Compare Rei side by side: Rei vs Reina Rei vs Reign Rei vs Reilly
Related Names
Names with a similar popularity rank to Rei
Nationwide names with similar peak year or record span
Two nationwide peer axes for Rei: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~2020)
Similar record span (~51 yrs)
Peak year is the single SSA year with the most births for that name; record span is first-to-latest year in the national files, not a recommendation or shared origin claim.
Data Sources
Data as of August 2026. Source: U.S. Social Security Administration (SSA).
According to the Social Security Administration, this profile draws directly from the agency's public-use baby-name files (updated June 2026). See our methodology for the full extraction, aggregation, and privacy-suppression rules.
Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications, National Data, 1974–2025 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Name Almanac is rendered directly from the Social Security Administration's public baby-name files, no number is typed in by an editor. This profile for Rei draws directly on SSA national and state-level files, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.