1. Girls name: Olivia
2. Boys name: Owen
3. Unisex name: Oakley
4. Place name: Odessa
5. Biblical name: Obadiah
6. Nature name: Olive
7. Literary name: Otis
8. Actor/Actress name: Oprah
9. Singer/Musician name: O'Connor (Sinead)
10. Surname name: O'Brien
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