Total births
171
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.
- 171
- total births
- 1978–2009
- years on record
- 1990s
- peak decade
- 41%
- born in that 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.
- 171 total births
- 1978–2009 years on record
- 1990s peak decade
- 41% born in that decade
Data updated Jul 2026
The verdict
171 girls have been named Rhiannan since 1978, peaking in the 1990s, last recorded in 2009.
- 171
- total births
- 1978–2009
- years on record
- 1990s
- peak decade
- 41%
- born in that decade
1990s
Peak decade
41% of everyone ever named Rhiannan was born in this single decade.
1998
Single peak year
14 babies were named Rhiannan in 1998 - its busiest year on record.
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 at a glance
Last recorded 2009Peak year
1998
Current rank
Unranked
Active since
1978
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
Total births in each ten-year window, peak vs trough at a glance
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? ▼
171 babies have been named Rhiannan since 1978. It was last recorded in 2009. The peak year was 1998 with 14 births.
When was Rhiannan most popular? ▼
Rhiannan was most popular in the 1990s decade with 70 total births. The single peak year was 1998.
How long has the name Rhiannan been used? ▼
The SSA has tracked Rhiannan since 1978 -- 32 years through the most recent 2009 data.
What names are similar to Rhiannan? ▼
Names with a similar sound or spelling include Rhiannon, Rhianna, Rhiana, Rhiley, and 4 more. These share a common prefix and are also used for girls.
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.
- Weighing it against an alternative? Put two names side by side. Compare names
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
Rhiannon Girl
#1300 15,539 births
Rhianna Girl
#7369 5,774 births
Rhiana Girl
1,054 births
Rhiley Girl
#5532 921 births
Rhian Girl
#10503 889 births
Compare Rhiannan side by side: Rhiannan vs Rhiannon Rhiannan vs Rhianna Rhiannan vs Rhiana
Related Names
Names with a similar number of total births
Data Sources
Data as of July 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).
Cite this page
NameAlmanac Editorial. "Rhiannan: Baby Name Since 1978 - 171 Births, Peak 1998." NameAlmanac. Accessed via https://namealmanac.com/name/rhiannan. Licensed CC BY-SA 4.0.
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 July 2026.