Baby Names That Start With O
Baby names that start with O are a small but incredibly stylish group, headed off 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. You also might want to check out our lists of Girl Names That Start With O, Boy Names That Start With O, or Unisex Names That Start With O.
Find all our search by letter tools on the Baby Names A-Z page.
- Oliver
Origin:
GermanicMeaning:
"olive tree"
- Ophelia
Origin:
GreekMeaning:
"help"
- Oscar
Origin:
English or IrishMeaning:
"God spear, or deer-lover or champion warrior"
- Otto
Origin:
GermanMeaning:
"wealthy"
- Otis
Origin:
Variation of Otto, GermanMeaning:
"wealthy"
- Ottilie
Origin:
German, FrenchMeaning:
"prosperous in battle"
- Olivia
Origin:
LatinMeaning:
"olive tree"
- Olive
Origin:
English, from Latin, nature nameMeaning:
"olive tree"
- Owen
Origin:
WelshMeaning:
"young warrior; well-born"
- Orion
Origin:
Greek mythology nameMeaning:
"boundary, limit"
- Orson
Origin:
Latin and EnglishMeaning:
"bear cub"
- Odette
Origin:
French, from GermanMeaning:
"wealthy"
- Ozias
Origin:
GreekMeaning:
"salvation"
- Odin
Origin:
Variation of Óðinn, Old NorseMeaning:
"god of frenzy; poetic fury"
- Orla
Origin:
IrishMeaning:
"golden princess"
- Oisin
Origin:
IrishMeaning:
"little deer"
- Opal
Origin:
SanskritMeaning:
"gem"
- Octavia
Origin:
LatinMeaning:
"eighth"
- Oren
Origin:
HebrewMeaning:
"laurel or pine tree"
- Orlando
Origin:
Italian variation of RolandMeaning:
"famous throughout the land"