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Unique Names that Start With O

Updated October 2026

Names159

Pages8

Total Names159

Across 8 pages

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Showing 61–80 of 159

Oaken
English
"of oak"
The name of the larger-than-life shopkeeper in Frozen makes a very on-trend nature-inspired baby name.
Olivander
Compound name, Oliver plus Alexander, Latin and Greek
"olive tree and defending men"
Olivander is a new and rising smoosh names for boys, a mashup of Oliver and Alexander. While it sidesteps the popularity of those two classic boy names, the result is not really better than the sum…
Oasis
Egyptian
"fertile spot in a desert"
A distinctive word name with musical ties, Oasis was given to 20 girls in 2024, compared with 14 in 2023.
Olenna
Literary name or variation of Olena, Ukrainian
"light, shining torch"
Likely inspired by the Ukrainian form of Helen, Olena, George R. R. Martin used this spelling for a character in his "A Song of Ice and Fire" series. The name first appeared in the US stats in 2017,…
Oberon
Variation of Auberon
"elf king; noble bear"
The Shakespearean character Oberon in A Midsummer Night's Dream is King of the Fairies, but the name, with its bold 'O' beginning has plenty of strength alongside its magical qualities. Oberon was…
Odie
Diminutive of Odell, Otis; English, German
"of the valley; wealthy"
This old-timey nickname for Otis and Odell is strongly tied to Garfield’s canine companion in the Garfield comic, movie, and TV franchise. Actress Ashley Williams gave it signs of life when she used…
Orli
Hebrew
"light"
Cute, nickname-y, and international, à la Romy or Demi. Spelling it Orly turns it into a busy French airport.
Obsidian
English word name
This rarely used boys name is one of the few gem names for a boy. Obsidian is actually a type of volcanic glass, formed when lava cools very quickly. This ultra-cool name might spark a love of…
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…
Ocie
Short form of Ocean, nature name
Ocie is antiquated ie-ending nickname that was popular in the late 1800s and early 1900s and has seen a slight uptake in interest in recent years. What's Ocie short for? Ocean in all its forms is the…
Oswin
Old English
"God's friend"
Ancient name, near obsolete now, but could make a good alternative to Owen for the adventurous baby namer. Doctor Who fans will recognize this as part of his companion's name, Clara Oswin Oswald.
Oasis
Egyptian
"fertile spot in a desert"
Oasis is an ultra-rare word name that has only ever been used for a handful of babies born in the US. Its appeal is undeniable, though. An oasis can be a place of refuge, or a place of beauty, in an…
Osmond
English
"divine protection"
Once too tightly tied to the aging musical clan featuring Donny and Marie, Osmond may now be able to escape that association and join the cooler group of Os and Oz names, which include Osgood, Ozias,…
Odilia
Germanic
"fatherland; wealth, fortune"
Though it has never charted in the United States, this frilly name has the elements some brave, modern namers might find attractive—namely, the initial O and the -ia suffix. St. Odile of Alsace, also…
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…
Olivet
Place name
Mount Olivet is a mountain ridge east of and adjacent to Jerusalem's Old City. It is named for the olive groves that once covered its slopes. Several key events in the life of Jesus, as related in…
Olivine
Latin
"olive"
A gem named for its green hue.
Ogden
English
"from the oak valley"
Rarely used surname, associated with humorous poet Ogden Nash.
Osian
Welsh variation of Oisin, Irish
"little deer"
Osian is the easier-to-comprehend version of the ancient Irish Oisin, an important name in mythology. Osian or Oisin was a warrior poet. Osian is popular in modern Wales and England. While Oisin is…
Opaline
Elaboration of Opal, French, Sanskrit
"gem"
A word name with a touch of Adeline/Caroline/Apolline mixed in, Opaline has a sleek and stylish yet whimsical feel.

Unique Names that Start With O

Oaken

Olivander

Oasis

Olenna

Oberon

Odie

Orli

Obsidian

Ona

Ocie

Oswin

Oasis

Osmond

Odilia

Oliva

Olivet

Olivine

Ogden

Osian

Opaline