Mahamaya Prasad Sinha (1 May 1909 – 1987) was an Indian politician. He was the fifth Chief Minister of Bihar from March 1967 to January 1968 which was the first non congress Government in Bihar. Sinha was a follower of Maharaja Kamakhya Narain Singh and Maharaj Kumar Basant Narain Singh and was a member of their political Jan Kranti Dal. He was elected to the 6th Lok Sabha, lower house of the Parliament of India from the Patna constituency of Bihar in 1977. Before quitting Congress, he was among the four prominent leaders of Bihar unit during 1960s, the others being Krishna Ballabh Sahay, Satyendra Narayan Sinha and Binodanand Jha.