Compare two names
Jillyn and Jillian side by side: Jillyn peaked in 1976 and Jillian in 1982; in 2025 they were given to 0 and 177 babies.
Jillyn and Jillian, year by year
Girls and boys together; Jillyn solid, Jillian dashed.
| Jillyn | Jillian | |
|---|---|---|
| Births 2025 | 0 | 177 |
| Rank 2025 | not ranked | #1,266 among girls’ names |
| Recorded since 1880 | 171 | 83,424 |
| Peak year | 1976 | 1982 |
| Girls | 100% | 99.7% |
| Alive, estimated | 158 | 81,600 |
| Median age | 50 | 31 |
Both names: SSA national file, published May 8, 2026, and SSA’s cohort life tables.