Carl Theodor Zahle (19 January 1866 in Roskilde – 3 February 1946 in Copenhagen), Danish lawyer and politician; prime minister of Denmark 1909–1910, 1913–1920. In 1895 he was elected member of the lower chamber of the Danish parliament ("Folketinget"), for the Liberal Party ("Venstrereformpartiet"). A campaigner for peace, in 1905 he co-founded the Social Liberal Party ("Det Radikale Venstre") together with other (mostly pacifistic) disgruntled members of "Venstrereformpartiet". He continued on as a member of the "Folketinget" for "Det Radikale Venstre" until 1928, when he became a member of the upper chamber of parliament ("Landsting"). In 1929 he became Justice Minister, a post which he held until 1935.