Bolesław Bierut (1944 - 1947 as President of National Country Council - Prezydent Krajowej Rady Narodowej; 1947 - 1952 as President of the Republic of Poland - Prezydent RP)
Wojciech Jaruzelski (July 16, 1989 - Dec. 31, 1989 as President of the People's Republic of Poland - Prezydent PRL; Jan. 1, 1990 - Dec. 21, 1990 as President of the Republic of Poland - Prezydent RP)
;RP = Rzeczpospolita Polska : Republic of Poland (official name 1918 - 1952 and since 1990)
;PRL = Polska Rzeczpospolita Ludowa : People's Republic of Poland (official name 1952 - 1989)
;KC PZPR = Komitet Centralny Polskiej Zjednoczonej Partii Robotniczej : Central Committee of Polish United Workers Party
See also Lists of incumbents