| ÁLEIFR m Ancient Scandinavian |
| ALFARR m Ancient Scandinavian |
| ALFHER m Ancient Germanic |
| ALIVIA f English (Modern) |
| ALVAR m Swedish, Finnish, Estonian |
| ÁLVARO m Spanish, Portuguese |
| AMHLAIDH m Scottish |
| AMHLAOIBH m Irish |
| AULAY m Scottish |
| LIV (2) f English |
| LIVIA (2) f English |
| LIVVY f English |
| NOLL m Medieval English |
| OLA (1) m Norwegian, Swedish |
| OLAF m Norwegian, Danish, German, Dutch, Polish |
| ÓLAFUR m Icelandic |
| OLAV m Norwegian, Danish |
| OLAVI m Finnish |
| OLAVO m Portuguese |
| OLE m Danish, Norwegian |
| OLEV m Estonian |
| OLI m English |
| OLIVA f Late Roman |
| OLIVE f English |
| OLIVÉR m Hungarian |
| OLIVER m English, German, Swedish, Norwegian, Danish, Finnish, Estonian, Serbian, Croatian, Macedonian, Czech, Slovak |
| OLIVERA f Serbian, Croatian, Macedonian |
| OLIVETTE f Literature |
| OLÍVIA f Portuguese, Slovak, Hungarian |
| OLIVIA f English, Italian, Spanish, German, Finnish, Swedish, Norwegian, Danish |
| OLIVIE f French, Czech |
| OLIVIER m French, Dutch |
| OLIVIERO m Italian |
| OLIWIA f Polish |
| OLIWIER m Polish |
| OLLE m Swedish |
| OLLI m Finnish |
| OLLIE m & f English |
| OLOF m Swedish |
| OLOV m Swedish |
| OLUF m Danish |
| OLYVIA f English (Rare) |
| UOLEVI m Finnish |
| VIVI f Danish, Swedish, Norwegian |
