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Spanish Names that Start With O

Updated October 2026

Names28

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Total Names28

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About this list

There are 28 Spanish names that start with the letter O for boys and girls, including Octavio, Osvaldo, Ofelia, Odalys, Ona, Oliva, Olimpia, Odalis, Oliverio, Onofre, Oro, Ortega, Osmundo, Oto, Otman, Otilio, Ovidia, Ofelio, Olalla, and Odalis.

The names

Showing 1–20 of 28

Octavio
Spanish variation of Octavius
"eighth"
The most popular of the number names used by Hispanic parents, open to all. Octavia and Octavio are two Spanish baby names that are moving out into the wider world.
Osvaldo
Spanish variation of Oswald
Popular in the Hispanic community, unlike its English cousin. It has been very near the bottom of the US Top 1000 for the last three years.
Ofelia
Ofelia is a feminine name with roots in ancient Greek literature, derived from the name Ophelia. It originated from the Greek word 'ophelos,' meaning 'help' or 'benefit.' This name gained literary…
Odalys
French, Spanish
"chambermaid, concubine; wealth, fortune"
Odalys has two possible origins, one perhaps more likely — and more favorable — than the other, given that is used predominantly in Spanish speaking countries. Most familiar in Cuba, Puerto Rico,…
Ona
Lithuanian variation of Anna, Catalan diminutive of Mariona
"grace; wave; bitter, beloved"
A short, sweet name with plenty of substance, Ona is a multicultural choice, familiar in Spain, Lithuania, Egypt, and historically, in the US. Recent years have seen it reach the Catalonian Top 10…
Oliva
Oliva is a feminine name with Latin roots, serving as a variation of Olive or Olivia. Derived from the Latin word for the olive tree, 'oliva,' it symbolizes peace, fertility, and victory in classical…
Olimpia
Olimpia is a feminine name of Greek origin, connected to Mount Olympus, the mythological home of the Greek gods. The name carries connotations of divinity, elevation, and celestial beauty. While the…
Odalis
French, Spanish
"chambermaid, concubine; wealth, fortune"
Also appearing as Odalys, this name has two possible origins, one more favorable perhaps than the other. Used predominantly in Spanish speaking countries, and in the US, Odalis may come from the…
Oliverio
Spanish form of Oliver, Latin
"olive tree"
As Oliver's fan base spreads throughout the English-speaking and Euro-centered worlds, other forms of the popular name are sure to gain attention.
Onofre
Onofre is a masculine name of Greek origin, derived from the name Onuphrius (Onophrius), which means "always happy" or "he who is sacred." The name was popularized through Saint Onuphrius, a…
Oro
Spanish
"gold"
Rare, with a gleaming, golden image.
Ortega
Spanish name
"dweller at the sign of the grouse"
Dashing Latin surname name -- but also a well-known brand of Spanish packaged foods.
Osmundo
Osmundo is a masculine name with Spanish and Germanic roots. It derives from the Old Germanic elements 'os' or 'ans' meaning 'god' and 'mund' meaning 'protection,' literally translating to 'divine…
Oto
Oto is a concise, cross-cultural masculine name with various origins and meanings. In Japanese culture, it means 'sound' or 'melody,' reflecting harmony and artistic qualities. In Slavic languages,…
Otman
Otman is a masculine name with multicultural roots, primarily used in Arabic, Turkish, and Berber cultures. It's a variation of Ottoman or Othman, derived from the Arabic name "Uthman," meaning "baby…
Otilio
Otilio is a masculine name with Latin origins, derived from the Roman family name Ottilius or Otilius, which comes from the Latin "otium" meaning "leisure" or "peace." Primarily used in…
Ovidia
Feminine variation of Ovidius, Roman family name
"shepherd or sheep"
Ovidia is the unusual feminine form of the ancient Roman Ovidius, most famous as the name of the exiled 1st century Roman poet Ovid. Modern male form Ovidio is known in Spain and Portugal. Ovida is…
Ofelio
African Portuguese, Spanish, Greek
"help"
Most notably used in Mozambique and Mexico, this rare, masculine form of Ofelia could work as a rare alternative to Celio, Felix, Orlando, and Emilio. Yet to rank in the US stats, an alterative…
Olalla
Galician or Spanish form of Eulalia, Ancient Greek
"sweetly speaking"
A playful and spirited form of Eulalia, familiar in Spain.
Odalis
Spanish variation of Odilia or Odo, Germanic
"wealth, fortune; fatherland"
While Odalis and Odalys are predominantly given to girls in the US, Cuba, Mexico, and Columbia, however it is used as a masculine name in the Dominican Republic and Venezuela. Likely derived from the…

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