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