Cognomen Olascoaga (Olascoaga 
) , all over the world, is quite a rare family name. The family name Olascoaga is habitual in Latin America and the Caribbean, particularly Uruguay, where it is quite a rare surname, Mexico, and Peru. Not in comparison with a country's population, this name is the most popular in Latin America and the Caribbean, particularly Mexico, Colombia, and Peru. Much less frequently, Olascoaga is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Olascoaga | Uruguay, Mexico, Colombia, United States, Peru |
|
manuel josé olascoaga Argentinian politician, AR (b. 1835) |
|
| octavio olascoaga Argentinian military personnel, AR (b. 1842) |
|
|
| ramón de olascoaga (b. 1864) |
|
|
| mercedes iridoy olascoaga Spanish politician, ES (b. 1924) |
|
|
| raúl casas olascoaga Uruguayan writer, UY (b. 1926) |
|
|
| ariel olascoaga Uruguayan basketball player, UY (b. 1929) |
|
|
| josé luis lópez olascoaga (b. 1964) |
|
|
| diego martínez olascoaga Uruguayan writer, UY |
|
|
| m j olascoaga researcher |
|
|
| javier olascoaga researcher |
|
|
| estanislao valdés olascoaga UY |
|
|
| luis ernesto olascoaga footballer, MX (b. 1991) |
|
|
| beñat olascoaga researcher |
|