Choosing the perfect name for your baby girl is one of the most exciting parts of preparing for her arrival. If you’re searching for girl names that start with O, this collection is a wonderful place to begin. Based on data from the U.S. Social Security Administration, these names include some of the most popular and beautiful choices for baby girls.
Whether you’re looking for a timeless classic, a modern favorite, or a unique name with a special meaning, these O girl names offer plenty of inspiration. Many have elegant sounds and rich histories, while others have become increasingly popular among parents who want a name that feels fresh and distinctive. Whether you’re choosing a first name or a meaningful middle name, you’ll find a variety of lovely options to explore.
Many talented women, celebrities, and influential figures also share popular girl names beginning with O, making these names even more memorable. Here are a few well-known examples:
- Olivia Wilde – American actress, filmmaker, and producer
- Oprah Winfrey – American media executive, talk show host, and philanthropist
- Olivia Rodrigo – American singer, songwriter, and actress
- Octavia Spencer – Academy Award-winning American actress
Browse the list below to discover the perfect O name for your baby girl. Whether your style is classic, elegant, modern, or unique, you’re sure to find a beautiful name that your little girl will proudly carry throughout her life.
| Olivia | Oaklynn |
| Oakley | Olive |
| Ophelia | Octavia |
| Opal | Oaklee |
| Oaklyn | Oakleigh |
| Ocean | Odette |
| Onyx | Odessa |
| Oriana | Ofelia |
| Ollie | Ottilie |
| Olympia | Oona |
| Orla | Ozzy |
| Ozzie | Oaklie |
| Odelia | Olga |
| Ohana | Ora |
| Oakland | October |
| Odalys | Ori |
| Olyvia | Olena |
| Oumou | Orion |
| Orianna | Oaklynne |
| Ona | Orli |
| Oceana | Olivianna |
| Oliver | Odyssey |
| Oriah | Oriyah |
| Orly | Owen |
| Oasis | Olenna |
| Oliva | Oluwadarasimi |
| Ohemaa | Olani |
| Osiris | Omni |
| Oaklen | Oksana |
| Ola | Oceanna |
| Ocie | Odeya |
| Omara | Oshun |
| Odalis | Olina |
| Olivette | Oliviana |
| Onalee | Oriya |
| Oceane | Oliviah |
| Oraya | Oysha |
| Olanna | Omani |
| Otilia | Ottilia |
| Oaklei | Odilia |
| Oliana | Omega |
| Orchid | Oshyn |
| Osmary | Ostara |
| Oceann | Olaya |
| Olivine | Onesty |
| Onika | Onora |
| Oreoluwa | Orlaith |
| Orya | Ozella |
| Ozora | Oakly |
| Ohanna | Olimpia |
