Boy names ending in O offer many intriguing options.
 
Mateo is the most popular boy name ending with O right now, though there are nearly 100 O-ending boy names among the US Top 1000. Along with Mateo, other boy names in the US Top 1000 include Leo, Santiago, Diego, Romeo, and Antonio.
 
And there are hundreds more unique names for boys that end with the letter O worthy of your consideration. These range from the biblical Jethro to the ancient Greek Cosmo to the cool, modern Rio and Po.
 
Here are all Nameberry’s boy names that end with the letter O. The top names below rank among the current US Top 1000 Baby Names and are ordered by popularity. Unique names rank below the Top 1000 and are listed alphabetically.

Names Ending in O for Boys

Geitano

Juan antonio

An intriguing Estonian with a cool sound, popularised in Estonia in the 1930s because of a character with the same name in the 1934 novel ‘Ümera jõel’ by Mait Metsanurk.



Vello

Binyamino

Fujimoto

Karmelo

Lorenso

Ludlo

Quyto

Iker santiago

Lamario

Romono

Sanctio

Elisaeo

Siguefredo

Tadio

Frascuelo

Shelomo

Loreno

Eginio

boy names ending in o

Baby boy Names ending in the letter O, with meanings, origins, and popularity, including top boy names that end in O such as Milo and Kylo along with unique O-ending names such as Quinto. (Page 103)

1770+ Boy Names Ending in O - Page 103

1770+ Boy Names Ending in O

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