Cardo is a surname. Notable people with the name include:

Dominic Cardo, American competitive eater Horacio Cardo (1944–2018), painter and illustrator from Argentina Manolo Cardo (1940–2025), Spanish football player Michael Cardo (born 1977), South African politician Pierre Cardo (born 1949), French politician Ron Cardo (born 1946), American football player and coach

See also Cardo (record producer) Cardo (disambiguation)