Last name Cosme Wenceslao (Cosme Wenceslao 
) , all over the world, is an extremely rare cognomen. The last name Cosme Wenceslao is habitual in Latin America and the Caribbean, particularly Chile, where it is a very rare surname. More prevalently, Cosme Wenceslao is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Cosme Wenceslao | Chile, Peru |