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.