Julio Gervasio Pérez Gutiérrez (19 June 1926 in Montevideo– 22 September 2002) was a Uruguayan footballer.
From 1950 to 1957 he played for Club Nacional de Football, winning the Uruguayan championship in 1950, 52, 55 and 56. He also earned 22 caps and scored 9 goals for the Uruguay national football team from 1947 to 1956. He was part of Uruguay's championship team at the 1950 FIFA World Cup, and also participated in the 1954 FIFA World Cup. During the 1950 World Cup Final, he famously wet himself during the national anthem.
In Brazil he played for Sport Club Internacional.
Pérez died in 2002. His remains are buried at Cementerio del Buceo, Montevideo.