1078 Baby Names That Start With O (With Meanings and Popularity)
Baby names that start with O are a small but incredibly stylish group, headed up by Olivia and Oliver. These sophisticated — and very similar — names are the most popular names for girls and boys in England and rank among the top baby names in other Anglophone countries such as Scotland, Australia, and New Zealand.
Along with Olivia, other girl names beginning with O in the US Top 500 include Olive, Ophelia, Oakley and spelling variant Oaklee, and Octavia. As well as Oliver, other boy names starting with O in the US Top 500 include Owen, Oscar, Omar, Orion, Oakley, Odin, and Omari.
Unique O names have an extra dose of originality thanks to their O initial. Some of our favorites include the dramatic and feminine Olympia and Oriana, modern and gender-neutral October and Ode, and creative and historical Oberon and Odette. Océane and Orla, top names in France and Scotland, respectively, would make excellent imports.
Here, our full selection of names that start with O, ordered by their current popularity on Nameberry.
Related:
- Oscar
Origin:
English or IrishMeaning:
"God spear, or deer-lover or champion warrior"
- Oliver
Origin:
Germanic, LatinMeaning:
"elf army; ancestor's relic; olive tree"
- Ophelia
Origin:
GreekMeaning:
"help"
- Olivia
Origin:
LatinMeaning:
"olive tree"
- Owen
Origin:
WelshMeaning:
"young warrior; well-born"
- Otto
Origin:
GermanMeaning:
"wealthy"
- Orion
Origin:
GreekMeaning:
"boundary, limit"
- Ottilie
Origin:
German, FrenchMeaning:
"prosperous in battle"
- Odette
Origin:
French, from GermanMeaning:
"wealthy"
- Otis
Origin:
Variation of Otto, GermanMeaning:
"wealthy"
- Olive
Origin:
English, from Latin, nature nameMeaning:
"olive tree"
- Ozias
Origin:
Greek, HebrewMeaning:
"my strength is God"
- Orla
Origin:
IrishMeaning:
"golden princess"
- Ozzy
Origin:
Pet form of Oswald, Osborn, Osmond or Oscar, EnglishMeaning:
"divine; deer"
- Opal
Origin:
SanskritMeaning:
"gem"
- Orson
Origin:
Latin and EnglishMeaning:
"bear cub"
- Onyx
Origin:
Word nameMeaning:
"gem stone; claw, nail"
- Odin
Origin:
Variation of Óðinn, Old NorseMeaning:
"god of frenzy; poetic fury"
- Odessa
Origin:
Ukrainian place-name
- Oakley
Origin:
EnglishMeaning:
"oak wood or clearing"