Rhiannon Girl
How popular is Rhiannon?
#1,119 girl name in 2025
210 baby girls were named Rhiannon in the US in 2025, making it the 1119th most popular girl name.
15,266living people named Rhiannon (est.)
28median age of people named Rhiannon
15,544babies named Rhiannon since 1880
1 in 15,787US babies born in 2025
Rhiannon popularity over time
Boys Girls
| Rank in 2025 | #1,119 for girls (▲ 177 from 2024) |
|---|---|
| Babies in 2025 | 210 girls |
| 10-year trend | Rising fast (+75% babies vs 2015) |
| Earlier ranks | #1,743 in 2015, #1,156 in 2020 |
| Peak year | 1999 (651 girls) |
| Highest rank | #418 in 1977 |
| First recorded | 1974 |
| Boys vs girls (last 10 years) | 0% boys, 100% girls |
| Chance a classmate shares it | 0.2% in a class of 25 kids born in 2025 |
Where Rhiannon is most popular
Babies named Rhiannon per 1,000 girls born in each state, 2021 to 2025. Darker means more common.
AKMEVTNHWAIDMTNDMNILWIMINYRIMAORNVWYSDIAINOHPANJCTCAUTCONEMOKYWVVAMDDEAZNMKSARTNNCSCDCOKLAMSALGAHITXFL
- West Virginia: 0.4 per 1,000 (11 girls)
- Colorado: 0.3 per 1,000 (30 girls)
- Arizona: 0.2 per 1,000 (30 girls)
- Washington: 0.2 per 1,000 (28 girls)
- Missouri: 0.2 per 1,000 (21 girls)
Rhiannon by decade
| Decade | Baby girls | Best rank |
|---|---|---|
| 1970s | 1,666 | #418 |
| 1980s | 3,276 | #499 |
| 1990s | 3,833 | #424 |
| 2000s | 4,075 | #453 |
| 2010s | 1,444 | #1,239 |
| 2020s | 1,245 | #1,103 |
Girl names about as popular as Rhiannon
Questions
- Is Rhiannon a boy or girl name?
- Rhiannon is mostly a girl name. Over the last 10 years, 100% of babies named Rhiannon were girls.
- How popular is the name Rhiannon?
- 210 baby girls were named Rhiannon in the US in 2025, making it the 1119th most popular girl name.
- When was Rhiannon most popular?
- Rhiannon peaked in 1999, when 651 girls were given the name. Its highest rank was #418 in 1977.
- How many people are named Rhiannon?
- 15,544 babies have been named Rhiannon in the US since 1880. We estimate about 15,266 of them are alive in 2026, with a median age of 28.
- Where is Rhiannon most popular?
- From 2021 to 2025, Rhiannon was most common in West Virginia, at 0.4 of every 1,000 girls born there.
Source: Social Security Administration baby name data, 1880 to 2025 (names given to at least 5 babies of a sex in a year). Living-people and median-age figures are our estimates using US life tables. How we calculate.