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

Sango is an African lingua franca spoken in Central African Republic. DJ and musician Kai Asa Savon Wright uses Sango as his stage name.

Sango

Pippo

Timito

Properly spelt Lourenço, this is the Portuguese form of Laurence.

Lourenco

Chequelo

Alexandro

Dylan eduardo

Although this Italian name is identical to the word for "lily", it is actually a cognate of Giles (English) or Gilles (French), meaning "young goat".

Giglio

Maximiano

Bernardino

Ameriko

Nerio

Lavro

Filiberto

Thierno

Olympio

Nunzio

Possible "nerd" temptation for nicknamers makes Nando a preferable choice. 

Nardo

Fortunato

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 67)

1770+ Boy Names Ending in O

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