1103 Baby Names That Start With O (With Meanings and Popularity)
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About this list
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:
The names
Oliver
Germanic, Latin
"elf army; ancestor's relic; olive tree"
Olivia
Latin
"olive tree"
Oscar
English or Irish
"God spear, or deer-lover or champion warrior"
Owen
Welsh
"young warrior; well-born"
Odette
French, from German
"wealthy"
Otto
German
"wealthy"
Ozias
Greek, Hebrew
"my strength is God"
Ophelia
Greek
"help"
Ottilie
German, French
"prosperous in battle"
Orion
Greek
"boundary, limit"
Otis
Variation of Otto, German
"wealthy"
Olive
English, from Latin, nature name
"olive tree"
Oakley
English
"oak wood or clearing"
Orla
Irish
"golden princess"
Odeya
Hebrew
"I will thank God"
Orin
Variation of Oren or Oran, Hebrew, Irish, Scottish
"laurel, light, song, little green one"
Opal
Sanskrit
"gem"
Orson
Latin and English
"bear cub"
Odin
Variation of Óðinn, Old Norse
"god of frenzy; poetic fury"
Osiris
Egyptian
"with strong eyesight"
