British names for Baby Girls – O
- Oldwin – an old and beloved friend
- Oleda– the one who is like a winged creature
- Ongela – a form of a name Angela – the one who is like an angel
- Omyra– a form of Myra- resembling a fragrant oil
- Ongela– a form of a name Angela- resembling an angel
- Orguelleuse– an arrogant woman
- Orva – precious as gold
- Osanna– a form of a name Hosanna – raising a praise to God
- Osberga– the one who is like a queen
- Osma– protected by God
- Otha – the little rich child
- Ouida –a form of a name Louise- a famous warrior
- Overton –the one who comes from the upper side of town
