Carlos Diaz may refer to:

• Carlos Díaz (athlete) (born 1993), Chilean middle-distance runner
• Carlos Diaz (catcher) (born 1964), played for Toronto Blue Jays
• Carlos Diaz (pitcher) (1958–2015), pitcher in Major League Baseball
• Carlos Díaz (footballer, born 1945), Chilean footballer
• Carlos Díaz (footballer, born 1974), Argentine footballer
• Carlos Díaz (footballer, born 1979), Uruguayan international footballer
• Carlos Díaz (footballer, born 1982), Colombian football defender
• Carlos Diaz (soccer, born 1987), American professional football (soccer) player

• Carlos Diaz (Emmerdale), fictional character in British TV soap opera Emmerdale
• Carlos Díaz (politician) (born 1970), member of the Senate of Puerto Rico
• Carlos Diaz (theater director) (born 1957), Cuban theater director
• Carlos Díaz "Caíto" (1945–2004), Argentine singer-songwriter and guitarist
• Carlos Enrique Díaz de León (1910–1971), provisional President of Guatemala, 1954
• Carlos Gaviria Díaz (born 1937), Colombian lawyer, professor and politician
• Carlos Jiménez Díaz (1898–1967), Spanish physician and clinical researcher
• Carlos Díaz León (born 1972), Chilean actor

• Carlos Dias (disambiguation)