Gustav Adolf Procházka (11 March 1872, Kosmonosy, Mladá Boleslav District, Czechoslovakia – 9 February 1942, Prague) was the second patriarch of the Czechoslovak Hussite Church.

[1] Originally a Roman Catholic priest, he became a reformist oriented clergyman, and later co-founder with Karel Farský of the Czechoslovak Hussite Church, a spiritual leader of the church, bishop, and eventually patriarch.

Starting 1935 until 1939 he was a professor on the Jan Hus line of theology at Charles University's (in Czech Univerzita Karlova) Hus's Czechoslovak Evangelical Faculty of Theology (in Czech, Husovy československé evangelické fakulty bohoslovecké - HČEFB) in Prague.

He served as Bishop of the diocese of the Czechoslovak (Hussite) Church in East Bohemia (1923-1928).

He concurrently held the position of Bishop of Prague and West Bohemia Diocese of the Church also from 1928 to 1942.