Boys' name · since 1915
Reidar
16 babies named Reidar in U.S. Social Security records since 1915, with the highest year being 1915. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
- #31,000 of 45,481
- all-time among boys
- 16
- born since 1915
- 1910s
- peak decade
16 boys have been named Reidar since 1915, though it isn't currently a top-ranked name.
According to the U.S. Social Security Administration, Reidar has been recorded 16 times among boys since 1915, though it is not among the currently most-used boys names, with its heaviest use in the 1910s. This profile covers year-by-year birth trends, decade totals, and state-level distribution, all derived directly from SSA birth-registration files spanning 1915 to 1994.
- #31,000 of 45,481 all-time among boys
- 16 born since 1915
- 1910s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Reidar ranks #31,000 of 45,481 boys' names by all-time recorded births (highest first). 16 born since 1915, peaking in the 1910s.
- #31,000 of 45,481
- all-time among boys
- 16
- born since 1915
- 1910s
- peak decade
Reidar's 16 recorded births place it above 31.5% of the 45,481 boys names in the full SSA archive.
No state rows cleared SSA’s public reporting threshold for this name.
Reidar's usage pattern, beyond the headline number
Divide Reidar's SSA record in two at 1919 and the more recent half accounts for 63% of all births, the earlier half the remaining 37%, consistent with a name still gaining ground rather than fading. Its calmest year was 1919, with only 5 births recorded -- set against the 1915 peak of 6, that's the full swing in one name's fortunes.
Reidar popularity over time
Annual U.S. births registered with the Social Security Administration · 1915–1994
- Peak year (1915)
- 6
- Annual births at peak, across 80 years of records
Reidar by decade
1910s is the heaviest window (11 births, 69% of the file).
1910s was Reidar's strongest decade.
11 babies received the name during that ten-year window, about 69% of all-time use.
Reidar births by decade
Total births in each ten-year window
- 1910s
1910s
11 births
- 1990s
1990s
5 births
What this shows Peak: 1910s at 11 births (69% of all-time use).
Frequently Asked Questions
How popular is the name Reidar? ▼
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What to do with Reidar's data
- Reidar's usage has stayed within range of its 1910s decade-level peak (11 total births) through the 1990s (5) -- a comparatively stable name, not a fading trend.
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Reidar
Nearby Names Like Reidar
Names with a similar sound, spelling, or feel to Reidar
Compare Reidar side by side: Reidar vs Reid Reidar vs Reilly Reidar vs Reign
Related Names
Names with a similar number of total births
Nationwide names with similar peak year or record span
Two nationwide peer axes for Reidar: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~1915)
Similar record span (~79 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, 1915–1994 (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 Reidar 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.