Otto Liebe (May 24 1860 - March 21 1929) was Prime Minister of Denmark March 30 1920 to April 5 1920. His cabinet was called the Cabinet of Otto Liebe .

Otto Liebe was appointed Prime Minister by King Christian X after the king had dismissed Prime Minister Carl Theodor Zahle and his cabinet, because of dissatisfaction with the amount of land seded to Denmark in the Schleswig Plebiscite . This use of power by the king, which was based in the Danish constitution , led to the Easter Crisis of 1920 , and Otto Liebe was replaced by Michael Pedersen Friis after 5 days. The incident also led to a revision of the Danish constitution later in 1920.