Name Origins: English Starting with O
| Name |
Gender |
Origin |
Meaning |
| Oakden | M | English | From the oak tree valley |
| Ocelfa | M | English | From the high plain |
| Odale | M | English | Of the valley |
| Odam | M | English | Son in law |
| Odayle | M | English | Of the valley |
| Odo | M | English | Ric, wealthy |
| Odom | M | English | Son in law |
| Odwolf | M | English | Wealthy wolf |
| Odwolfe | M | English | Wealthy wolf |
| Odwulf | M | English | Wealthy wolf |
| Oegelsby | M | English | Fearsome |
| Ogden | M | English | From the oak valley |
| Ogdon | M | English | From the oak tree valley |
| Ogelsby | M | English | Fearsome |
| Ogelsvie | M | English | Fearsome |
| Ogelsvy | M | English | Fearsome |
| Okes | M | English | From the oak |
| Oliver | M | English | Elf army |
| Ollaneg | M | English | From Olney |
| Ollie | M | English | Elf army |
| Olney | M | English | From Olney |
| Onslowe | M | English | From the zealous one’s hill |
| Orahamm | M | English | From tbe riverbank enclosure |
| Oram | M | English | From tbe riverbank enclosure |
| Oratun | M | English | From the shore farm |
| Orde | M | English | Point, sword |
| Ordland | M | English | From the pointed hill |
| Ordman | M | English | Spearman |
| Ordmund | M | English | Spear defender |
| Ordsone | M | English | Ormond’s son |
