Carlos Ruiz may refer to:

Academics

• Carlos Ruiz Encina (b. 1964), Chilean sociologist and political activist

Authors and journalists

• Carlos Ruiz Chapellín (1865–1912), Venezuelan showman
• Carlos Ruiz Apezteguia (1930–1995), Paraguayan journalist and entrepreneur
• Carlos Ruiz-Tagle (1932–1991), Chilean writer
• Carlos Ruiz Zafón (1964–2020), Spanish novelist

Sports

• Carlos Ruiz (sailor) (born 1940), Salvadoran Olympic sailor
• Carlos Ruíz (volleyball) (born 1957), Cuban volleyball player
• Carlos Ruiz (Argentine footballer) (born 1971), Argentine footballer
• Carlos Ruiz (Guatemalan footballer) (born 1979), Guatemalan footballer
• Carlos Ruiz (baseball) (born 1979), Panamanian baseball player
• Carlos Ruiz (footballer, born 1983), Spanish footballer
• Carlos Ruiz (Peruvian footballer) (born 2002), Peruvian footballer

Military

• Carlos A. Ruiz, Sergeant Major of the United States Marine Corps