Júlio is a Portuguese masculine given name. The equivalent in Spanish is Julio.
The diminutive form is Julinho, as in Júlio César Teixeira known as Julinho, a Brazilian footballer.
Notable people with the given name include:
- Júlio Afrânio Peixoto (18761947), Brazilian physician, writer, politician, historian, university president and eugenicist
- Júlio Almeida (born 1969), Brazilian sport shooter
- Júlio Alves (born 1991), Portuguese footballer
- Júlio Alves (born 1994), Brazilian footballer
- Júlio Andrade (born 1976), Brazilian actor and director