Malcolm Mitchell Young (6 January 1953-18 November 2017) is a Scottish-born Australian guitarist, best known as a founding member, rhythm guitarist, backing vocalist and songwriter for the Australian hard rock band AC/DC, and was inducted into the Rock and Roll Hall of Fame in 2003 along with the other members of AC/DC. He has been with them since he co-founded the band in November 1973, apart from a brief absence in 1988.

Though his younger brother Angus is the more visible of the brothers, Malcolm has been described as the business and brains behind AC/DC. As the rhythm guitarist, he is responsible for the broad sweep of AC/DC's sound, developing many of the band's guitar riffs and co-writing the band's material.

He died on 18 November 2017 at the age of 64