Family name Osorio Fonseca (Osorio Fonseca 
) , in the world, is a very rare cognomen. The family name Osorio Fonseca is habitual in Ecuador, where it is a very rare surname, Colombia, and Spain, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Osorio Fonseca | Ecuador, Spain, Colombia |
Abel, Keilyn, Marco Ruben, Emilia Rosa, and Luis Fernando