Last name Guanca (Guanca 
) , throughout the world, is quite a rare cognomen. The cognomen Guanca is habitual in Latin America and the Caribbean, particularly Argentina, where it is quite a rare surname, Bolivia, where it is a rare surname, and Ecuador, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Guanca | Argentina, Peru, Bolivia, Chile, Ecuador |
|
patricio guanca Argentine military personnel (1957-1982), AR (b. 1957) |
|
| cristian guanca Argentine footballer, AR (b. 1993) |
|
Ana, Juan, Tito, Nila, Nora, Nery, Elio, Elsa, Elva, Elba, Elda, Eric, Hugo, Facu, Ines, Irma, Ilda, Ivan, Ibar, Olga, Omar, Yony, Jose, Luis, Lino, Dora, Ada, Pio, Leo, Eva, Mara, More, Mica, Sara, Aldo, Abel, Maria, Adan, Ciro, Beda, Raul, Rosa, Rene, Rita, Ruth, Dany, Daii, Dina, Cruz, and Mario