Gerard Friedrich "Gerrie" Knetemann (6 March 1951 in Amsterdam – 2 November 2004 in Bergen, North Holland) was a Dutch road bicycle racer who won the 1978 World Championship.
He wore the Yellow Jersey early in each Tour de France for four consecutive years between 1978 and 1981.
A four-time winner of the Ronde van Nederland, he also rode the Tour de France 11 times between 1974 and 1987, winning 10 stages, a Dutch record equalled only by Jan Raas and Joop Zoetemelk.
Knetemann won 127 races as a professional.
Knetemann maintained an Amsterdam accent and a sharp sense of humour that made him a favourite with reporters and earned him television and radio appearances.
His best year in the Tour de France was 1978, when he led from the sixth stage.