Manfred Herweh (born June 14, 1954) is a former Grand Prix motorcycle road racer from Germany. He had his best year in 1984 when he won four races riding a Rotax-powered Real 250cc motorcycle. Herweh ended the season in second place behind Christian Sarron. He retired after the 1989 season.

Herweh's 1984 Grand Prix-winning motorcycle is on display at the Sinsheim Automobile and Technical Museum in Sinsheim, Germany.

Herweh is the last person to win a 350cc Grand Prix race, at the 1982 German Grand Prix.

From 1984, Herweh constructed motorcycles using frames from Nico Bakker and Rotax engines. These motorcycles competed in Grand Prix motorcycle racing using the chassis name "Real", due to a sponsorship agreement with a German hypermarket of the same name.

Points system from 1969 to 1987:

Points system from 1988 to 1992:

() (Races in bold indicate pole position; races in italics indicate fastest lap)

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