Jan Ceton

Group portrait of SDP leaders in 1911, Jan Ceton seated on the far right

Jan Ceton (13 May 1875, Bodegraven – 21 January 1943, Amerongen) was a Dutch left-wing politician involved with both the Social Democratic Workers' Party and the Communist Party of the Netherlands. Ceton is best known as one of the founders of the Social Democratic Party, which later provided the core of the Communist Party of the Netherlands.