Inder Singh Namdhari (born 11 September 1942) is an Indian politician. He was a member of the Indian Parliament, and represented Chatra (Lok Sabha constituency). He won the 2009 Indian general election as an Independent candidate, with support from the Bharatiya Janata Party and was first Vidhan sabha speaker of Jharkhand. He was prominent leader of Vanachal state movement which demanded separate state for south Bihar.