| Iuliana | | - | Romanian, Ancient Roman | |
| Iuliu | | - | Romanian | |
| Larisa | | lah-REE-sah (Russian) | Russian, Ukrainian, Romanian, Latvian, Greek Mythology | |
| Laura | | LAWR-ə (English), LOW-rah (Spanish, Italian, Finnish, Polish, Swedish, Norwegian, Danish, German, Dutch), LAW-oo-raw (Hungarian) | English, Spanish, Italian, Portuguese, Romanian, Finnish, Estonian, Hungarian, Polish, Slovene, Croa | |
| LaurenȚIu | | low-REN-tsyoo | Romanian | |
| Lavinia | | - | Roman Mythology, Romanian | |
| LenuȚA | | le-NOOT-sah | Romanian | |
| Liana | | - | Italian, Portuguese, Romanian, English | |
| Lidia | | LEED-yah (Polish), LEE-dyah (Italian), LEE-dhyah (Spanish) | Polish, Italian, Spanish, Romanian | |
| Liliana | | lee-LYAH-nah (Italian, Polish), lil-ee-AN-ə (English) | Italian, Spanish, Portuguese, Romanian, Polish, English | |
| Livia (1) | | LEE-vyah (Italian) | Italian, Romanian, Ancient Roman | |
| Liviu | | - | Romanian | |
| Loredana | | - | Italian, Romanian | |
| Luca (1) | | LOO-kah (Italian) | Italian, Romanian, German | |
| 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 | |