O Female
Octavia - (Latin origin) Octavia means "Eighth."
Odessa - (Location origin) Odessa (Russian) Odesa (Ukrainian) is located on the Black Sea and is a port city in Southern Ukraine.
Olive - (Latin origin) Olive is a variant of Oliva that means "Olive Tree."
Olivia - (Latin origin) Olivia is a variant of Oliva that means "Olive Tree."
Olympia - (Location origin) Olympia is the state capital of Washington state in the USA.
Omie - (Hebrew origin) Omie means "Pleasant."
Opal - (Sanskrit origin) Opal is a variant of Upala, meaning "Jewel."
Orla - (Celtic origin) Orla means "Golden Princess."
Ottessa - (Greek origin) Otessa is a variant of Tess that is a variant of Theresa, meaning "Harvester."