Marek Piwowski
Birthday: 10/24/1935
Gender: Male
Place Of Birth: Warszawa, mazowieckie, Polska

Marek Andrzej Piwowski (Polish pronunciation: [ˈmarɛk piˈvɔfskʲi]; born 24 October 1935 in Warsaw) is a Polish film director and screenwriter. He is best known for his cult film Rejs (1970).