Boys Names That Start With O

Discover popular boys’ names that start with O. From Oliver to Owen, find the perfect name that fits your style. Let’s check out unique choices, their meanings, and origins. Find an O name that’ll inspire and stand out. Search now for more amazing names for boys.

O’callahan

The name O'callahan is a boy's name of Irish origin, meaning "son of the church lover".

Osei

The name Osei is a boy's name meaning "noble".

Oisín

The name Oisín is a boy's name of Irish Gaelic origin, meaning "little deer".

Owl

The name Owl is both a boy's name and a girl's name.

Oriole

The name Oriole is both a boy's name and a girl's name meaning "golden".

Osler

The name Osler is a boy's name meaning "hostelier; fowler, poulterer".

Osheen

The name Osheen is a boy's name of Gaelic origin.

O’donovan

The name O'donovan is a boy's name of Irish origin.

O’keefe

The name O'keefe is a boy's name of Irish origin, meaning "son of the kind one".

Om

The name Om is a boy's name meaning "creation".

Ox

The name Ox is a boy's name meaning "working cattle".

Oan

The name Oan is a boy's name of Breton origin, meaning "lamb".

Oseias

The name Oseias is a boy's name.

Odilon

The name Odilon is a boy's name meaning "wealth".

Obsidian

The name Obsidian is a boy's name.

Omen

The name Omen is a boy's name meaning "sign, foreshadowing".

O’fallon

The name O'fallon is a boy's name of Irish origin, meaning "son of the leader".

Okello

The name Okello is a boy's name of Ugandan origin, meaning "born after twins".

Omar

The name Omar is a boy's name of Arabic origin, meaning "flourishing, thriving; eloquent".

Ollivander

The name Ollivander is a boy's name.

Oxford

The name Oxford is a boy's name of English origin, meaning "from the oxen crossing".

Ossie

The name Ossie is both a boy's name and a girl's name.

Orhan

The name Orhan is a boy's name meaning "great leader".

Ostap

The name Ostap is a boy's name meaning "well-built, stable".

Othniel

The name Othniel is a boy's name of Hebrew origin, meaning "lion of god, or strength of god".

Olugbenga

The name Olugbenga is a boy's name meaning "God lifted me".

Osmo

The name Osmo is a boy's name meaning "young man".

Otieno

The name Otieno is a boy's name meaning "born at night".

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