All around the world, ジュリオ (Giulio 
, Júlio 
, ジュリオ 
) is a widespread male first name. The given name ジュリオ is habitual in Italy, where it is a common male name, Portugal, where it is quite a rare male name, and Angola. Not in comparison with a country's population, the name is most common in Italy, Angola, and Brazil. Very seldom, ジュリオ is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Giulio | Germany, Portugal, Italy, United States, Brazil |
| Júlio | Portugal, Italy, Angola, Brazil, Mozambique |
| ジュリオ | Japan |
Giuliano, Ioulian, Iulian, Jules, Julian, Juliano, Julianus, Julien, Julijan, Julio, Julius, Juliusz, Julián, Julião, Juluan, Jurio, Júlíus, Xián, Yulian, Джулиан, Джулиано, Джулио, Джулиус, Жил, Жул, Жулиан, Жулиен, Жулио, Жуль, Жюль, Жюльен, Иулиан, Ульян, Хулиан, Хулио, Хуліан, Хуліо, Юлиан, Юлий, Юлиус, Джулиус, Юлиус, Юлиуш, Юлиян, Юліан, Юліуш, Юліюс, Юліян, ג'ול, ג'וליאן, ג'ולס, ז'ול,
ジュリオ is also a name for the fictitious and mythical characters: Giulio Pittaluga , the character in the television series Un medico in famiglia; Giulio Tommasi ; Giulio Cesare , the operatic character in the opera Cesare in Farmacusa; Giulio Cesare , the operatic character in the opera Giulio Cesare, Giulio Cesare in Egitto and Giulio Cesare , the operatic character in the opera Il Pompeo by Alessandro Scarlatti.