Globally, Oscar Juan (Oscar Juan 
) is a rare male first name. The first name Oscar Juan is characteristic of Chile, where it is quite a rare male name, Peru, where it is a rare masculine name, and Spain. Much less frequently, Oscar Juan is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Oscar Juan | Spain, Mexico, Chile, Ecuador, Peru |
Saez, Morales, Sanchez, Aguilar, Aguirre, Cabrera, Ramirez, Rosales, Delgado, Jimenez, Herrera, Martinez, Cardenas, Castillo, Gonzalez, Espinoza, Maldonado, Contreras, Rodriguez, Gutierrez, Hernandez, Fernandez, Ortega, Flores, Fasolo, Vargas, Soto, Cruz, Rico, Diaz, Leon, Toro, Vera, Murga, Solis, Arias, Lopez Silva, Perez, Ramos, Rosas, Rojas, Lopez, Montes, Muñoz, Rivera, Garcia, Torres, Huaman, Peña, and Chaves Garcia