Female and male first names beginning with the letter “O”..

Oleane is a Scandinavian female name derived from Áleifr, meaning 'noble heir' or 'noble descendant'.

Oleatha is a unique African American name coined by blues legend Huddie 'Lead Belly' Ledbetter.

Oleavia is an African name from Nigeria's Igbo tribe meaning "the sun has risen" or "the sun is shining," reflecting beauty, warmth, and new beginnings.

Oleda is a unique girls' name of Slavic origin, derived from the Russian word 'oleg', meaning 'holy'. Despite its boyish counterpart Oleg, Oледа has been adopted as a variant for girls, carrying deep religious symbolism.

Olee is a rare yet meaningful Greek name derived from 'ōléa', meaning olive, symbolizing peace and wisdom.

Oleen is a unique Irish given name derived from the surname Ó hEidhin, meaning 'descendant of Eidin', which translates to 'little fire' or 'spark'.

Oleeta is a captivating feminine name of African origin derived from the Ashanti people of Ghana, meaning "she has a beautiful heart".

Oleita is a unique Scandinavian female name derived from Old Norse Álfhildr meaning "elf battle," associated with magical powers in folklore.

Olema is an Igbo Nigerian name meaning "wealth has arrived".

Olen is a distinctive yet uncommon given name with unknown origins and meaning, believed to have emerged in mid-20th century America without a widely accepted etymology or significance. Some sources suggest it may be a variant of Welsh-origin Allen ('little rock' or 'handsome'), but this remains unconfirmed. The name has never ranked among the top 1,000 most popular boy names in the U.S., yet its uniqueness continues to appeal to parents seeking uncommon names for their children.

Olena is a unique Ukrainian female given name derived from Oleksandra, meaning "defender" or "protector".

Olenna is a rare yet elegant Greek-derived name meaning 'olive tree', symbolizing peace and wisdom.

Olenna is a Welsh-derived feminine name meaning "youth," originally the masculine Owain, associated with powerful Prince Owain Gwynedd of Wales (1103-1170).

Oler is a distinctive Norwegian boy's name, derived from Old Norse 'Óleifr', meaning 'elf-like'.

Olesha is a Slavic given name of Ukrainian origin, derived from Oleksiy, which means 'defender' or 'protector'. It has been popularized by influential Ukrainian writer Oleksandr Dovzhenko, who used the pen name Olesha.

Olesia is a unique Ukrainian female name derived from the Greek Helen, meaning 'torch' or 'corposant', popularized through Homer's Iliad.

Olesya is a Ukrainian female name derived from Helen, meaning 'torch' or 'corposant', interpreted as 'light' in Slavic cultures.

Oleta is a unique and beautiful name of Spanish origin, derived from the Spanish word "ole" which means "wave.

Oletha is a rare African American name combining Olivia ("olive tree," peace, beauty) and Letitia ("happy," joyful), with possible influence from Alethea ("truth").

Olethea is a rare Greek-derived female name rooted in ancient mythology's Lethe river of forgetfulness, though its exact meaning remains open to interpretation.

Olethia is a unique Greek female given name derived from 'olethros', meaning destruction or ruin. It was borne by an Oceanid nymph in ancient Greek mythology, granting it a powerful and captivating aura.

Oletta is an Italian name derived from 'olea', meaning olive, symbolizing peace and fertility.

Oleva is a Scandinavian female name derived from Old Norse Álfrún, meaning "elf-rune".

Olevia is a rare Scandinavian name derived from 'olfr', meaning wolf, and 'geirr', meaning spear, reflecting ancient Viking strength and courage.

Olexa is a distinctive male name of Ukrainian origin, derived from Oleksandr meaning "defending men". It has been popular in Ukraine for centuries and is still widely recognized today.

Olexus is a captivating Greek name meaning "defender of mankind.

Oley is a rare German name meaning "from the meadow" or "of noble descent".

Olga is a Slavic feminine name derived from Old Norse Helga, meaning 'sacred' or 'holy', associated historically with figures like Grand Princess Olga of Kiev who converted Kievan Rus' to Christianity.