Sergio Martínez

Sergio Martínez may refer to:


 * Sergio Martínez (boxer) (born 1975), Argentine boxer
 * Sergio Martínez (cyclist) (1943–1979), Cuban Olympic cyclist
 * Sergio Martínez (swimmer) (born 1936), Colombian Olympic swimmer
 * Sergio Martínez (footballer) (born 1969), Uruguayan footballer
 * Sergio Martínez Ballesteros (born 1975), Spanish footballer
 * Sergio Castro Martínez (born 1941), Mexican humanitarian