Girl · Name family
Rhiannon
26,433births recorded
11Countries
3Variants
1992Peak · South Australia
#1119United States 2025
Rhiannon is a girl name family recorded 26,433 times in 11 countries since 1974. It ranks highest today in the United States (#1119 in 2025). Its all-time peak was in South Australia in 1992, at 209.7 births per 100,000.
Popularity by country
Births per 100,000 newborns, all forms of the name combined.
Which form wins where
Births per 100,000 newborns for each form, in the selected country.
Rank in countries that publish top lists only
All forms of Rhiannon
| Variants | Language | Total births | Country | Latest rank | Peak year | 10-year trend |
|---|---|---|---|---|---|---|
| Rhiannon | English | 15,544 | 🇺🇸 United States | #1119 | 1999 | ▲ 95 % |
| Rhiannon | English | 6,202 | 🏴 England & Wales | #1407 | 1998 | ▼ 16 % |
| Rhiannon | English | 1,253 | 🇦🇺 New South Wales | – | 1994 | – |
| Rhiannon | English | 850 | 🏴 Scotland | – | 1997 | – |
| Rhiannon | English | 559 | 🇨🇦 Ontario | – | 2004 | – |
| Rhiannon | English | 530 | 🇦🇺 South Australia | – | 1992 | – |
| Rhianon | English | 355 | 🇺🇸 United States | – | 1978 | – |
| Rhianon | English | 60 | 🏴 England & Wales | – | 1996 | – |
| Riannon | English | 250 | 🇺🇸 United States | – | 1987 | – |
| Riannon | English | 88 | 🏴 England & Wales | – | 2000 | – |
How we grouped these names
- Rhiannon ↔ Rhianon — spelling variant
- Rhiannon ↔ Riannon — spelling variant
Questions about Rhiannon
How popular is the name Rhiannon?
In 2025 it ranked #1119 in the United States. Official registers record 26,433 births across 11 countries.
What is Rhiannon in other languages?
Rhianon (English); Riannon (English).
When was Rhiannon most popular?
It peaked in South Australia in 1992, at 209.7 births per 100,000.
Is Rhiannon a boy or a girl name?
In official birth registers, Rhiannon is a girl name.