Markus Beyer (28 April 1971 – 3 December 2018) was a German professional boxer who won the World Boxing Council super middleweight title.

On 23 October 1999, Beyer won his first world title against WBC super middleweight champion Richie Woodhall.

On 5 April 2003, Beyer challenged Canadian WBC super middleweight champion Eric Lucas and was awarded a highly controversial split decision in Germany.

Beyer defeated Sanavia by knockout in a rematch then went on to retain the title five times by scoring wins over Yoshinori Nishizawa, Danny Green, Omar Sheika, Alberto Colajanni, and a draw against Sakio Bika.

On 14 October 2006, Beyer lost his title via third-round knockout to WBA super middleweight champion Mikkel Kessler in a unification fight.