| Kristina | | kris-TEE-nah (German) | Swedish, Norwegian, Danish, Russian, German, Slovene, Czech, Lithuanian, Serbian, Croatian, Faroese, | |
| Kristjan | | - | Estonian, Slovene | |
| Ksenija | | - | Serbian, Croatian, Macedonian, Slovene | |
| Ladislav | | - | Czech, Slovak, Slovene, Croatian | |
| Lara (1) | | LAHR-ə (English), LAH-rah (German, Italian, Spanish, Portuguese) | Russian, English, German, French, Italian, Spanish, Portuguese, Dutch, Hungarian, Slovene, Croatian | |
| 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 | |
| Lavra | | - | Slovene | |
| Lea | | LE-ah (German, Finnish) | German, Dutch, Swedish, Norwegian, Danish, Finnish, Slovene, Croatian | |
| Lenart | | - | Slovene | |
| Leon | | LEE-awn (English), LE-awn (German, Polish) | English, German, Polish, Slovene, Croatian, Dutch, Ancient Greek | |
| Leopold | | LE-o-pawlt (German), LAY-o-pawlt (Dutch), LEE-ə-pold (English), le-AW-pawlt (Polish) | German, Dutch, English, Slovene, Polish | |
| Lidija | | - | Slovene, Croatian, Serbian, Macedonian | |
| Lilijana | | - | Slovene | |
| Ljerka | | - | Croatian, Serbian, Slovene | |
| Ljuba | | LYOO-bah (Serbian, Croatian) | Serbian, Croatian, Czech, Slovene, Macedonian | |