By ending · -o
Baby names ending in -o
The top 60 most-popular names ending in -o, drawn from 2,594 on file in 2026.
● 2,594 names on file
As of 2026, 2,594 baby names on record end in the sound -o. Below is the top 60, ranked by current U.S. SSA popularity.
Mateo
Muncertain
Leo
MLatin · lion
Santiago
MSpanish · saint james
Leonardo
MItalian
Thiago
Muncertain
Diego
MSpanish · null
Enzo
MItalian, Germanic
Theo
Muncertain
Milo
MLatin · soldier
Lorenzo
MItalian · gift
Emiliano
MSpanish, Italian · rival
Matteo
Muncertain
Antonio
MSpanish, Italian · gift
Alejandro
MSpanish
Arlo
MIrish · between two highlands
Emilio
MItalian, Spanish, Portuguese
Nico
Muncertain
Maximiliano
MSpanish · null
Francisco
MLatin
Kairo
Muncertain
Angelo
Muncertain
Eduardo
MSpanish, Portuguese · wealthy guardian
Fernando
MSpanish, Portuguese · bold voyager
Romeo
Muncertain
Ricardo
MSpanish, Portuguese · powerful ruler
Mario
Muncertain
Otto
MGerman · wealth, fortune
Marco
Muncertain
Niko
Muncertain
Sergio
MItalian and Spanish
Cairo
MArabic · the victorious
Pablo
Muncertain
Pedro
MSpanish, Portuguese · rock
Luciano
MItalian · light
Hugo
Muncertain
Santino
Muncertain
Apollo
MGreek
Roberto
MItalian, Spanish, Portuguese · bright fame
Rocco
MGermanic · rest
Bo
Muncertain
Alonzo
MItalian · null
Rodrigo
MSpanish, Portuguese, Italian · ruler's power
Armando
MSpanish, Italian, Portuguese · army man
Kylo
Muncertain
Julio
Muncertain
Marcelo
MSpanish, Portuguese
Gerardo
MItalian, Spanish · brave spear
Valentino
Muncertain
Leandro
MSpanish, Portuguese, Italian · man of the people
Alessandro
Muncertain
Arturo
MItalian/Spanish
Tadeo
Muncertain
Gustavo
MItalian/Spanish/Portuguese
Rio
Muncertain
Mauricio
Muncertain
Halo
FModern English
Margo
Funcertain
Camilo
MSpanish and Portuguese
Alberto
MItalian, Spanish, Portuguese · noble
Kenzo
Muncertain