Globally, Julio César (Julio César 
) is quite a rare masculine first name. The given name Julio César is habitual in Latin America and the Caribbean, particularly Uruguay, where it is quite a rare boy's name, the Dominican Republic, and Cuba. Not in comparison with a country's population, it is commonest in Latin America and the Caribbean, particularly the Dominican Republic, Colombia, and Guatemala. Much less frequently, Julio César is the last name as well as the forename.
| VARIANT | COUNTRY |
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| Julio César | Colombia, Dominican Republic, Bolivia, Guatemala, Cuba |
Julio Cesar, and Júlio César
| julio césar semín Spanish painter, ES (b. 1584) |
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julio césar tello rojas Discovered the Paracas culture (1880-1947), PE (b. 1880) |
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julio césar neffa Argentine economist, AR (b. 1901) |
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julio césar turbay President of Colombia (1916-2005), CO (b. 1916) |
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julio césar trujillo Ecuadorian politician, EC (b. 1931) |
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julio césar strassera Argentine lawyer and jurist, AR (b. 1933) |
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julio césar maglione Uruguayan swimmer, UY (b. 1935) |
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| julio césar garcía otero Uruguayan pathologist (1895-1966), UY (b. 1895) |
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| julio césar vargas calderón Peruvian botanist (1903-2002), PE (b. 1903) |
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julio césar uribe Peruvian footballer, PE (b. 1957) |
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| julio césar sagasta Argentine equestrian, AR (b. 1914) |
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julio césar dely valdés Panamanian footballer and manager, PA (b. 1967) |
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| julio césar barton Argentinian actor and journalist, AR (b. 1918) |
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| julio césar villafuerte Ecuadorian composer, Colombian nationalized, EC (b. 1928) |
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| julio césar gully coirolo Uruguayan basketball player, UY (b. 1928) |
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Cruz, Flores, Ortega, Morales, Mendoza, Chávez, Pereira, Ribeiro, Delgado, García, Herrera, Martinez, Sánchez, Castillo, Ramírez, Guerrero, Oliveira, Martínez, Rodriguez, Rodrigues, González, Montoya Pérez, Vargas, Torres, López, Gómez, Ruiz, Silva, Souza, Alves, Ayala, Cesar, Perez, Peña, Ramos, Rojas, Rodríguez, Reyes, Ortiz, Molina, Muñoz, Santos, Acosta, Castro, César, Pérez, Romero, Rivera, Lopez, and Hernández