Sjoerd Wartena

Sjoerd Wartena (born 1 May 1939) is a retired Dutch rower. He competed at the 1964 Summer Olympics in the coxless fours, together with Jim Enters, Herman Boelen and Sipke Castelein, and finished in fourth place. He won a silver medal in the coxed pairs at the 1963 European Championships.
Son of a doctor, Wartena studied literature and worked at a university library in Amsterdam. In the 1970s he moved to a village in southern France, where he learned farming and in 2003 founded the movement Terre de Liens devoted to ecologically friendly agriculture.