Here you'll find the 74 best baby boy names that start with the letter O – modern, unique or classic, and from all over the world. Click on a name to see its origin, meaning, pronunciation, variants and statistical popularity.
Apart from masculine given names with O we also have girl names that start with O and unisex names that start with O. Check out all names beginning with O. Do have a look at all our male names, female names and gender-neutral names from A to Z. Or simply view all our names in the list first names.
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Last updated: 12/31/2022