Fenderesk (Persian: فندرسک) is a district (bakhsh) in Golestan Province in northern Iran. At the 2006 census, its population was 34,326, in 8,206 families. Khan Bebin (Persian: خان بهبین) is the district's only city. The district contains two rural districts (dehestan): Fenderesk-e Jonubi Rural District and Fenderesk-e Shomali Rural District. It is the place (Jafar Abad Namtaloo) in which the scientist and philosopher Mir Abulqasim Mirfendereski (c. 970-1050 AH) was born.