The First Secretary of the Chuvash regional branch of the Communist Party of the Soviet Union was the position of highest authority in the Chuvash AO (1920–1925) and the Chuvash ASSR (1925–1991) in the Russian SFSR of the Soviet Union. The position was created on October 8, 1920, and abolished in August 1991. The First Secretary was a de facto appointed position usually by the Politburo or the General Secretary himself.