Diego María de la Concepción Juan Nepomuceno Estanislao de la Rivera y Barrientos Acosta y Rodríguez, known as Diego Rivera (Spanish pronunciation: [ˈdjeɣo riˈβeɾa]; December 8, 1886 – November 24, 1957), was a prominent Mexican painter. His large frescoes helped establish the mural movement in Mexican and international art.

Between 1922 and 1953, Rivera painted murals in, among other places, Mexico City, Chapingo, and Cuernavaca, Mexico; and San Francisco, Detroit, and New York City, United States. In 1931, a retrospective exhibition of his works was held at the Museum of Modern Art in New York; this was before he completed his 27-mural series known as Detroit Industry Murals.

Rivera had four wives and numerous children, including at least one natural daughter. His first child and only son died at the age of two. His third wife was fellow Mexican artist Frida Kahlo, with whom he had a volatile relationship that continued until her death. His fourth and final wife was his agent.

Due to his importance in the country's art history, the government of Mexico declared Rivera's works as monumentos historicos. As of 2018, Rivera holds the record for highest price at auction for a work by a Latin American artist. The 1931 painting The Rivals, part of the record-setting Collection of Peggy Rockefeller and David Rockefeller, sold for US$9.76 million.