| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Laetitia | - | Late Roman, French | ||
| Laurus | - | Late Roman | ||
| Leo | LE-o (German, Finnish), LAY-o (Dutch), LEE-o (English) | German, Dutch, Swedish, Norwegian, Danish, Finnish, English, Croatian, Late Roman | ||
| Leocadia | - | Spanish, Late Roman | ||
| Leocadius | - | Late Roman | ||
| Leonia | - | Late Roman | ||
| Leonius | - | Late Roman | ||
| Leontina | - | Italian, Late Roman | ||
| Liberia | - | Late Roman | ||
| Liberius | - | Late Roman | ||
| Liborius | - | Late Roman | ||
| Lupus | - | Late Roman |