Total births
15,539
Girls' name · since 1974
Rhiannon
15,539 babies named Rhiannon in U.S. Social Security records since 1974, with the highest year being 1999. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
- #1300
- among girls today
- 15,539
- born since 1974
- 2000s
- peak decade
- 93%
- more common than other girls
Yes -- Rhiannon is the #1300 most popular girls' name in the U.S. today, with 15,539 recorded since 1974.
According to the U.S. Social Security Administration, Rhiannon has been recorded 15,539 times among girls since 1974, currently ranked #1300 nationally and more common than 93% of girls, with its heaviest use in the 2000s. 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.
- #1300 among girls today
- 15,539 born since 1974
- 2000s peak decade
- 93% more common than other girls
Data updated Jun 2026
The verdict
Rhiannon is currently the #1300 girls' name in America, more common than 93% of girls - 15,539 born since 1974, peaking in the 2000s.
- #1300
- among girls today
- 15,539
- born since 1974
- 2000s
- peak decade
- 93%
- more common than other girls
Rhiannon vs. every other girls name in current SSA rankings
#1300
of 17,726 girls in use
More common than 93% of names given to girls today.
2000s
Peak decade
26% of everyone ever named Rhiannon was born in this single decade.
1999
Single peak year
651 babies were named Rhiannon in 1999 - its busiest year on record.
How Rhiannon compares
15,539 Top 7% higher than 93% of 17,726 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
Rhiannon's all-time total is 41x the median girls name, and Olivia still leads by a wide margin.
| Metric | Rhiannon | Median girls name (Emerly) | #1 girls name (Olivia) |
|---|---|---|---|
| All-time total births | 15,539 | 382 | 567,345 |
| Peak-year births | 651 | 48 | 19,840 |
Rhiannon's usage pattern, beyond the headline number
Rhiannon splits its recorded history at 2000: 44% of all births land in the more recent half, 56% in the earlier half, an evenly balanced pattern over time. The single quietest year was 1974 (5 births) -- compare that against the 1999 peak of 651 for a sense of just how much the name's popularity has swung.
Rhiannon at a glance
Outside the top 1,000Peak year
1999
Current rank
#1,300
Active since
1974
Rhiannon popularity over time - girls
Annual U.S. births registered with the Social Security Administration · 1974–2025
- Peak year (1999)
- 651
- Annual births at peak, across 52 years of records
Rhiannon popularity over time - boys
5 total births recorded since 1982 (Rhiannon as boys' name)
Rhiannon by decade
Total births in each ten-year window, peak vs trough at a glance
2000s was Rhiannon's strongest decade.
4,075 babies received the name during that ten-year window, about 26% of all-time use.
Rhiannon births by decade
Total births in each ten-year window
- 1970s
1970s
1,666 births
- 1980s
1980s
3,276 births
- 1990s
1990s
3,833 births
- 2000s
2000s
4,075 births
- 2010s 1,444
2010s
1,444 births
- 2020s 1,245
2020s
1,245 births
What this shows Peak: 2000s at 4,075 births (26% of all-time use).
How Rhiannon 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 Rhiannon's total volume
Rhiannon vs 15 similarly-sized girls names
Rhiannon by state
Where Rhiannon concentrates geographically, total births since 1974
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | California | | 1,915 | 12.3% |
| #2 | Texas | | 1,029 | 6.6% |
| #3 | New York | | 741 | 4.8% |
| #4 | Pennsylvania | | 726 | 4.7% |
| #5 | Florida | | 624 | 4.0% |
| #6 | Illinois | | 610 | 3.9% |
| #7 | Ohio | | 591 | 3.8% |
| #8 | Arizona | | 460 | 3.0% |
California share of Rhiannon's total US births 12.3%
Even split
1,915 of 15,539 births nationwide. Compared to a flat distribution across 46 reporting states.
Rhiannon appears in 46 states. Explore state details →
Frequently Asked Questions
How popular is the name Rhiannon? ▼
15,539 babies have been named Rhiannon since 1974. It currently ranks #1300 among girls. The peak year was 1999 with 651 births.
When was Rhiannon most popular? ▼
Rhiannon was most popular in the 2000s decade with 4,075 total births. The single peak year was 1999.
Where is Rhiannon most popular? ▼
The top states for the name Rhiannon are California (1,915 births), Texas (1,029 births), New York (741 births).
How long has the name Rhiannon been used? ▼
The SSA has tracked Rhiannon since 1974 -- 52 years through the most recent 2025 data.
What names are similar to Rhiannon? ▼
Names with a similar sound or spelling include Rhianna, Rhiana, Rhiley, Rhian, and 4 more. These share a common prefix and are also used for girls.
What to do with Rhiannon's data
- Rhiannon's decade-level peak was the 2000s (4,075 total births); usage has since declined to 1,245 in the 2020s -- if you're weighing a "classic revival" angle, the trend line argues against it.
- California records the most Rhiannons (1,915 births) -- see the full state breakdown if geography matters to your decision. California names
- 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 Rhiannon
Nearby Names Like Rhiannon
Names with a similar sound, spelling, or feel to Rhiannon
Rhianna Girl
#7369 5,774 births
Rhiana Girl
1,054 births
Rhiley Girl
#5532 921 births
Rhian Girl
#10503 889 births
Rhianon Girl
355 births
Compare Rhiannon side by side: Rhiannon vs Rhianna Rhiannon vs Rhiana Rhiannon vs Rhiley
Related Names
Names with a similar popularity rank to Rhiannon
Ameera #1299
3,447 births · Peak 2024
Neveah #1301
5,449 births · Peak 2007
Khadijah #1298
7,596 births · Peak 1994
Reem #1302
3,610 births · Peak 2024
Robyn #1297
63,364 births · Peak 1964
Monserrat #1303
8,070 births · Peak 2014
Cara #1296
53,305 births · Peak 1985
Harlem #1304
1,745 births · Peak 2024
Data Sources
Data as of June 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).
Cite this page
NameAlmanac Editorial. "Rhiannon: #1300 Girls' Name - 15,539 Births, Peak 1999." NameAlmanac. Accessed via https://namealmanac.com/name/rhiannon. 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 Rhiannon 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 June 2026.