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

Hebrew name meaning 'light', associated with loyalty and devotion through the biblical figure in the Book of Ruth.

Rare Greek feminine name derived from "orphanos," meaning "orphan." It is associated with the legendary musician-poet Orpheus and was popular during the Middle Ages among Christians inspired by his story.

Rare yet captivating Greek name derived from the legendary musician-poet of ancient Greek mythology, son of the Muse Calliope and Apollo. It means 'darkness' or 'the shadow of death', reflecting his descent into the underworld for his beloved Eurydice.

Rare, Greek-derived female name meaning 'mountain', inspired by the mythological nymph associated with freedom and transcendence.

Rare Greek-derived name meaning 'orphan', popularized by ancient Greek mythology, and symbolizing love, devotion, and artistry despite its association with a tragic tale of Orpheus and Eurydice.

Rare Greek name derived from "orphanos," meaning orphan. It gained fame through mythical musician Orpheus, known for his ability to charm all living things with music and travel freely between the realms of the living and dead.

Orquídea is a captivating female given name of Spanish origin, derived from the word 'orquídea', meaning 'orchid'. It signifies beauty, grace, and rarity.

Orquídea is a Spanish name of Latin origin that means "orchid," derived from the Latin word "orchis" referring to the orchid plant family. It was first used during the Spanish colonial period in Latin America likely given as a middle or given name to girls born into wealthy families with orchid gardens on their estates. Today, Orquídea remains popular in Spanish-speaking countries and is occasionally used in English-speaking countries with significant Hispanic populations despite its rarity outside of Latin America. It has seen fluctuations in popularity over the years but remains a beloved name for those who appreciate its unique meaning and beautiful sound.

Rare Scottish name derived from Gaelic 'orr', meaning 'golden' or 'light'.

The name Orr originates from Scotland, meaning "edge" or "point", derived from the Old Norse word "orr".

Rare yet captivating Hebrew female name, with an unclear origin but often associated with the Hebrew word "or" meaning "light," interpreted as "radiant." It has gained recent popularity in English-speaking countries despite its historical rarity.

Unique Hebrew name meaning 'light', signifying knowledge and understanding.

Rare Scottish name, possibly derived from the surname Orrall, linked to medieval iron ore mining.

Irish boy's name derived from the ancient surname O'Rann, meaning 'descendant of Rann,' itself believed to mean 'little seal.'

Uncommon given name with unknown origins; its meaning and history remain largely undocumented.

Orrell, of English origin, means 'hill frequented by eels' and signifies adaptability and resilience.

American given name created by Edgar Allan Poe for his 1838 novel 'The Narrative of Arthur Gordon Pym of Nantucket', with some interpretations suggesting it means 'from the north'.

Rare name with unknown origins and no widely accepted meaning.

Old Norse name meaning 'strong hill' or 'noble strength', derived from 'orð' (hill) and '-ric' (power).

Uncommon American given name, believed to derive from the Scottish surname 'Orr', possibly meaning 'red', though this is not certain.

Rare American name thought to be a variant of Horatio, meaning "timekeeper" or "hour," but this connection is unproven. It gained popularity in the early 20th century for both boys and girls, with notable figures including baseball player Orestes "Orrie" Michael and footballer Orrie Butler. Despite its unknown origins, some parents are drawn to its uniqueness.

American male given name of Irish origin, derived from the surname "O'Reagain" meaning "descendant of Reagain," with positive associations such as uniqueness, independence, and strength.

Rare English given name derived from the Scottish surname O'Rourke, which means "red king" or "red chief".

Rare and mysterious name with unknown origins and meanings, though some theories suggest it may be linked to English names or Latin words for gold. Its history remains unclear, but it has been used sparingly throughout time likely due to its distinctive sound or positive associations. Today, Orris remains an uncommon choice for parents seeking unique names.

Uncommon Irish given name derived from the ancient surname O'Rourke, meaning "heart-shaped" or "small red-haired person.

Rare given name of unknown origin, believed by some to be derived from the Old Norse name Óðinn meaning "mind" or "spirit," although this is not definitively proven.

Distinctive Norwegian name derived from Ársbjôrn, meaning "bow bear" or "strong as an arrow.

Italian female name derived from the Latin 'aurum', meaning 'gold'. It signifies preciousness.

English name derived from Old Norse elements 'bjorn' meaning bear and 'sunnr' meaning sun, translating to "bear strength" or "strength like the sun". Popularized by actor Orson Welles, it's still rare yet powerful today.

Ortega: A Basque-origin Spanish surname derived from 'or txin', meaning 'black walnut', reflecting individuals who lived near these trees or had dark complexions.

Unique female name of Latin origin, meaning "rise" or "origin", and associated with the phrase "the rise and peak of glory".

Elegant Italian feminine name derived from "ortensis," meaning 'of Orton,' an ancient Roman town in Portugal today.

Rare yet captivating Latin-derived name meaning 'golden' or 'golden-haired', symbolizing strength, beauty, and wealth throughout history.

Rare Latin given name meaning "eagle," symbolizing strength and power.

Widely spread Spanish and Basque surname, believed to mean either "bear" or "hedge maker".

Rare English given name whose meaning varies based on its Old English or Old Norse origins, potentially signifying "noble thorn bush" or "strong as an eagle".

Ortrude, of Germanic origin, means 'famous in her place' or 'distinguished mark', reflecting its Old German roots 'ort' and 'ruth'. Once popular among royalty like Empress Matilda, this rare yet striking name offers a rich historical legacy.

Orum, of Hebrew origin, signifies 'light' or 'illumination', representing clarity, brightness, and understanding.

Egyptian name meaning 'well-formed' or 'powerful', associated with the falcon-headed deity son of Osiris and Isis.

Scandinavian name derived from Old Norse 'örvar', meaning 'defender' or 'protector'.