Marian "Marek" Spychalski pronounced ['marjan sp?'xalsk?i] (6 December 1906 – 7 June 1980) was a Polish architect in pre-war Poland, and later, military commander and communist politician.
During World War II he belonged to the communist underground forces operating within Poland and was one of the leaders of the resistance movement Gwardia Ludowa (People's Guard), then Armia Ludowa (People's Army).