| BOB m English, Dutch |
| BOBBI f English |
| BOBBIE f & m English |
| BOBBY m English |
| HOB m Medieval English |
| HOPCYN m Welsh |
| HOPKIN m Medieval English |
| HRODEBERT m Ancient Germanic |
| HRODPREHT m Ancient Germanic |
| PERTTI m Finnish |
| RAB m Scottish |
| RABBIE m Scottish |
| RAIBEART m Scottish |
| ROB m English, Dutch |
| ROBBE m Dutch |
| ROBBIE m & f English |
| ROBBY m English |
| ROBENA f English (Rare) |
| RÓBERT m Hungarian, Icelandic |
| ROBERT m English, French, Swedish, Norwegian, Danish, German, Dutch, Czech, Polish, Russian, Slovene, Croatian, Romanian, Ancient Germanic |
| ROBERTA f English, Italian, Spanish |
| ROBERTINA f Italian, Spanish |
| ROBERTO m Italian, Spanish, Portuguese |
| ROBERTS m Latvian |
| ROBI m Hungarian |
| ROBIN m & f English, Dutch, Swedish |
| ROBINA f English (Rare) |
| ROBRECHT m Dutch |
| ROBYN f English |
| ROBYNNE f English (Rare) |
| ROIBEARD m Irish |
| ROOPE m Finnish |
| ROOPERTTI m Finnish |
| ROPARZH m Breton |
| RUPERT m German, Dutch, English, Polish |
| RUPERTA f Spanish |
| RUPERTO m Spanish |
| RUPRECHT m German (Archaic) |