664 results  •  Page 1 of 14

Name Meaning Origin Popularity Other Gender
Onorato
Oswyn

God's friend

English

Osman

God's protection

Scandinavian

Olliver

Olive tree

Latin

Oran

Light; pale

Irish

Orie
Ordwin

Spear friend

English

Ophir

Gold

Hebrew

Olden
Octaviano
Oliverio

Olive tree

Latin

Ophrah
Oegelsby

Fearsome

English

O’Shea

Descendant of

Irish

Oleksei
Ordman

Spearman

English

Odam

Son in law

English

Orwel

Horizon

Welsh

Oxxford

Ford of the oxen

English

Olsen
Ogilvie

From the high peak

Scottish

Othmar
Oliverios

Affectionate

Spanish

Olvan

A variant form of Oliver.

On

Peace

Chinese

Oluwatamilore
Okhmhaka

Little wolf (Cheyenne)

Native American

Odwolfe

Wealthy wolf

English

Outram

“A free-lance warrior,” from the Middle English oute (out, free) and rauen (a raven, symbolic of a warrior).

English

Ourson

Little bear

French

Olutosin
Ottfrid

Wealthy peace

German

Oriel

Golden

Latin

Oaklynn
Olexei

Defender of man

Russian

Olympios

From Mount Olympus

Greek

Oxa

Ox

Anglo-Saxon

Oshea

Yahweh is salvation

Hebrew

Odus
Omanand
Otys

Wealth; son of Otto

German

Ogunsheye
Orson

Bear

Latin

Olney

From Olney

English

Oluwasemilore
Odulf

Prosperous wolf

German

Odion

Born of twins

African

Oluwatobi
Orien

The Orient, East

Latin

Osraed

Divine counselor

English

With an incredible starting letter, boy names that start with O are finding their way to the top of the charts. A wholesome letter with out-of-this-world charm, the letter O is a shining star of the vowel baby name trend. O names for boys are charismatic and approachable, retaining a charm that can’t be ignored.

While the baby boy names that start with O are beloved for their friendly side, there are quite a few strong boy names among the ranks as well. There are outworldly strong picks like Octavian and Osvaldo as well as names with strong meanings like Osman’s “God’s protection” and Ojas’ “strong one.”

As baby boy names starting with O heat up on the charts, there are still monikers waiting in the shadows for their time on top. These unique boy names that start with O include Osirus and Oren, two cool names with otherworldly appeal.

Sometimes the best way to find a name is to explore origins, keeping an open mind to those outside of your background. Gain inspiration from Latin names like Orson and Ollie or get to know Greek picks like Orion and Omega. With baby boy names starting with O, there’s something for every style.