Girls' name · since 1978
Rhiannan
171 babies named Rhiannan in U.S. Social Security records since 1978, with the highest year being 1998. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
- #21,442 of 72,339
- all-time among girls
- 171
- born since 1978
- 1990s
- peak decade
171 girls have been named Rhiannan since 1978, though it isn't currently a top-ranked name.
According to the U.S. Social Security Administration, Rhiannan has been recorded 171 times among girls since 1978, though it is not among the currently most-used girls names, with its heaviest use in the 1990s. This profile covers year-by-year birth trends, decade totals, and state-level distribution, all derived directly from SSA birth-registration files spanning 1978 to 2009.
- #21,442 of 72,339 all-time among girls
- 171 born since 1978
- 1990s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Rhiannan ranks #21,442 of 72,339 girls' names by all-time recorded births (highest first). 171 born since 1978, peaking in the 1990s.
- #21,442 of 72,339
- all-time among girls
- 171
- born since 1978
- 1990s
- peak decade
Rhiannan's 171 recorded births place it above 70.34% of the 72,339 girls names in the full SSA archive.
No state rows cleared SSA’s public reporting threshold for this name.
Rhiannan's usage pattern, beyond the headline number
Splitting Rhiannan's full recorded timeline at 1997, 51% of its total births fall in the more recent half of the record versus 49% in the earlier half -- a fairly even split across the full record. Its quietest year on record was 1984, with just 5 recorded births -- worth weighing against the 1998 peak of 14 to see the full range of the name's swing in popularity.
Rhiannan popularity over time
Annual U.S. births registered with the Social Security Administration · 1978–2009
- Peak year (1998)
- 14
- Annual births at peak, across 32 years of records
Rhiannan by decade
1990s is the heaviest window (70 births, 41% of the file).
1990s was Rhiannan's strongest decade.
70 babies received the name during that ten-year window, about 41% of all-time use.
Rhiannan births by decade
Total births in each ten-year window
- 1970s 7
1970s
7 births
- 1980s
1980s
36 births
- 1990s
1990s
70 births
- 2000s
2000s
58 births
What this shows Peak: 1990s at 70 births (41% of all-time use).
Frequently Asked Questions
How popular is the name Rhiannan? ▼
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What to do with Rhiannan's data
- Rhiannan's usage has stayed within range of its 1990s decade-level peak (70 total births) through the 2000s (58) -- 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 Rhiannan
Nearby Names Like Rhiannan
Names with a similar sound, spelling, or feel to Rhiannan
Compare Rhiannan side by side: Rhiannan vs Rhiannon Rhiannan vs Rhianna Rhiannan vs Rhiana
Related Names
Names with a similar number of total births
Nationwide names with similar peak year or record span
Two nationwide peer axes for Rhiannan: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~1998)
Similar record span (~31 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, 1978–2009 (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 Rhiannan 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.