King Size Dick (born Heinz Ganss; 29 December 1942) is a German rock singer who mainly sings in the Colognian dialect.

Whilst serving in the armed forces in Wales, he was a guest singer in a band called Brian Poole & The Tremeloes.

He usually took on the role of singing the band's successful song "Linda Lou", which has since been inextricably associated with the name King Size Dick.

King Size Dick is the bearer of the 2002 Willi Ostermann medal, the highest official award of the Cologne Carnival.

While Ganss was stationed in Wales with the German armed forces, he was asked to perform locally at social events, such as birthdays, which were potluck.