Boy names ending in O and Oah

[name_m]Renzo[/name_m], [name_m]Arto[/name_m], [name_m]Arno[/name_m], [name_m]Bruno[/name_m], [name_m]Cosimo[/name_m] / [name_m]Cosmo[/name_m], [name_m]Caio[/name_m], [name_m]Elio[/name_m], [name_m]Finlo[/name_m], [name_m]Hugo[/name_m], [name_f]Indigo[/name_f], [name_m]Ivo[/name_m], [name_m]Milo[/name_m], [name_m]Nico[/name_m], [name_m]Roscoe[/name_m], [name_m]Rocco[/name_m], [name_m]Theo[/name_m], [name_m]Mikko[/name_m]?