| Leone (1) | | - | Italian | |
| Leonida | | - | Italian | |
| Leonora | | - | Italian | |
| Leontina | | - | Italian, Late Roman | |
| Leonzio | | - | Italian | |
| Leopoldo | | le-o-POL-do (Spanish) | Italian, Spanish, Portuguese | |
| Letizia | | le-TEE-tsyah | Italian | |
| Lia (1) | | LEE-ah (Italian), LEE-ə (Portuguese, Georgian) | Italian, Portuguese, Georgian, Biblical Latin | |
| Lia (2) | | LEE-ah (Italian) | Italian, Dutch | |
| Liana | | - | Italian, Portuguese, Romanian, English | |
| Liberatore | | - | Italian | |
| Liboria | | - | Italian | |
| Liborio | | - | Italian | |
| 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 | |