Compare two names
Rhiannon and Rhianon side by side: Rhiannon peaked in 1999 and Rhianon in 1978; in 2025 they were given to 210 and 0 babies.
Rhiannon and Rhianon, year by year
Girls and boys together; Rhiannon solid, Rhianon dashed.
| Rhiannon | Rhianon | |
|---|---|---|
| Births 2025 | 210 | 0 |
| Rank 2025 | #1,119 among girls’ names | not ranked |
| Recorded since 1880 | 15,544 | 355 |
| Peak year | 1999 | 1978 |
| Girls | 100.0% | 100% |
| Alive, estimated | 15,200 | 345 |
| Median age | 28 | 37 |
Both names: SSA national file, published May 8, 2026, and SSA’s cohort life tables.