Ralf Waldmann (14 July 1966 – 10 March 2018) was a Grand Prix motorcycle road racer. He was born in Hagen, Germany.
In 1996, Waldmann finished second to Max Biaggi in the 250cc world championship. In the 1997 season, he gave Biaggi a strong challenge, winning four races and finishing only two points behind the Italian.
Waldmann died on 10 March 2018 in Ennepetal, Germany of a suspected heart attack at the age of 51.