Compare two names
Lousie and Louise side by side: Lousie peaked in 1918 and Louise in 1920; in 2025 they were given to 0 and 579 babies.
Lousie and Louise, year by year
Girls and boys together; Lousie solid, Louise dashed.
| Lousie | Louise | |
|---|---|---|
| Births 2025 | 0 | 579 |
| Rank 2025 | not ranked | #516 among girls’ names |
| Recorded since 1880 | 142 | 338,662 |
| Peak year | 1918 | 1920 |
| Girls | 100% | 99% |
| Alive, estimated | under 100 | 75,800 |
| Median age | n/a | 75 |
Both names: SSA national file, published May 8, 2026, and SSA’s cohort life tables.