Karl Eigen (3 November 1927 – 13 May 2016) was a German farmer and politician for the Christian Democratic Union. From 1962 until 1969, he served as a member of the municipal council of Stockelsdorf. He went on to serve as a member of the Bundestag from 1972 until 1976 and 1980 until 1990. He served as chairman of the Farmers' Association [de] of Schleswig-Holstein from 1984 until 1994, and served as an honorary president from 1994 until his death. He was an early advocate of using canola oil for biodiesel.^[1][2]