249 Unisex Names That Start With O (With Meanings and Popularity)
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About this list
Unisex names that start with O are flying high in the style stakes right now, with other O-starting choices like Oliver and Olivia, Owen and Oaklynn at an all-time high.
Two up-and-coming unisex O names, Oakley and Ocean, rank among the most popular unisex names to achieve an almost-equal gender split, making either one an awesome androgynous choice.
Here, our full selection of unisex names that start with O, ordered by their current popularity on Nameberry. Each name is used more often for the gender indicated by its heart.
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The names
Olivia
Latin
"olive tree"
Oliver
Germanic, Latin
"elf army; ancestor's relic; olive tree"
Oscar
English or Irish
"God spear, or deer-lover or champion warrior"
Owen
Welsh
"young warrior; well-born"
Otto
German
"wealthy"
Orion
Greek
"boundary, limit"
Ophelia
Greek
"help"
Otis
Variation of Otto, German
"wealthy"
Olive
English, from Latin, nature name
"olive tree"
Opal
Sanskrit
"gem"
Orla
Irish
"golden princess"
Octavia
Latin
"eighth"
Omar
Arabic, Hebrew
"flourishing, thriving; eloquent"
Odessa
Russian form of Odesa, Ukrainian place-name
"voyage"
Oakley
English
"oak wood or clearing"
Oren
Hebrew
"laurel or pine tree"
Ozzy
Pet form of Oswald, Osborn, Osmond or Oscar, English
"divine; deer"
Onyx
Word name
"gem stone; claw, nail"
Orlando
Italian variation of Roland
"famous throughout the land"
Oberon
Variation of Auberon
"elf king; noble bear"