Sadat Mahalleh-ye Rudbast (Persian: سادات محله رودبست, also Romanized as Sādāt Maḩalleh-ye Rūdbast; also known as Sādāt Maḩalleh) is a village in Babolrud Rural District, in the Central District of Babolsar County, Mazandaran Province, Iran. At the 2006 census, its population was 1,016, in 280 families.