| Line | | - | Danish, Norwegian, French | |
| Linn | | LIN | Swedish, Norwegian | |
| Linus | | LIE-nəs (English), LEE-nuws (German, Swedish) | Greek Mythology (Latinized), Ancient Greek (Latinized), German, Swedish, Norwegian, Danish | |
| Lis | | - | Danish, Swedish, Norwegian | |
| Lisa | | LEE-sə (English), LEE-zah (German), LEE-sah (Dutch) | English, German, Dutch, Swedish, Norwegian, Danish, Italian | |
| Lisbet | | - | Swedish, Norwegian, Danish | |
| Lise | | LEE-se (Swedish, Norwegian, Danish), LEES (English), LEEZ (English) | French, Swedish, Norwegian, Danish, English | |
| Liss | | - | Norwegian | |
| Liv (1) | | LEEV | Swedish, Norwegian, Danish | |
| Loke | | LOO-ke (Swedish) | Norse Mythology, Swedish, Norwegian, Danish | |
| Lorens | | - | Swedish, Norwegian, Danish | |
| Lotte | | LAW-tə (German) | Danish, Swedish, Norwegian, Dutch, German | |
| Lovise | | - | Danish, Norwegian | |
| 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 | |
| Ludvig | | - | Swedish, Norwegian, Danish | |