| Len | | LEN | English | |
| Lena | | LE-nah (German, Polish, Italian), LYE-nah (Russian), LEE-nə (English) | Swedish, Norwegian, Danish, German, Polish, Russian, English, Italian, Portuguese | |
| Lenard | | LEN-ərd | English | |
| Lennard | | LEN-ərd | English (Rare) | |
| Lennie | | LEN-ee | English | |
| Lennon | | LEN-ən | Scottish, English (Rare) | |
| Lennox | | LEN-əks | Scottish, English (Rare) | |
| Lenny | | LEN-ee | English | |
| Lenora | | - | English | |
| Lenore | | lə-NAWR | English | |
| Lenox | | LEN-əks | Scottish, English (Rare) | |
| Leo | | LE-o (German, Finnish), LAY-o (Dutch), LEE-o (English) | German, Dutch, Swedish, Norwegian, Danish, Finnish, English, Croatian, Late Roman | |
| Leola | | - | English | |
| Leon | | LEE-awn (English), LE-awn (German, Polish) | English, German, Polish, Slovene, Croatian, Dutch, Ancient Greek | |
| Leona | | lee-O-nə (English), LE-o-nah (German) | English, German | |