| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Livius | - | Ancient Roman | ||
| Longina | lawn-GEE-nah (Polish) | Polish, Ancient Roman | ||
| Longinus | - | Ancient Roman | ||
| Loredana | - | Italian, Romanian | ||
| Lot (2) | - | Arthurian Romance | ||
| Loukios | - | Ancient Roman (Hellenized), Biblical Greek | ||
| Luca (1) | LOO-kah (Italian) | Italian, Romanian, German | ||
| Lucanus | - | Ancient Roman | ||
| Lucia | loo-CHEE-ah (Italian), LOO-tsee-ah (German), LOO-shə (English), loo-SEE-ə (English) | Italian, German, English, Swedish, Norwegian, Danish, Romanian, Slovak, Ancient Roman | ||
| Lucian | LOO-shən (English) | Romanian, English | ||
| Luciana | loo-CHAH-nah (Italian), loo-THYAH-nah (Spanish), loo-SYAH-nah (Latin American Spanish) | Italian, Spanish, Portuguese, Ancient Roman | ||
| Lucianus | - | Ancient Roman | ||
| Lucilia | - | Ancient Roman | ||
| Lucilius | - | Ancient Roman | ||
| Lucilla | - | Italian, Ancient Roman |