Radha Mohan Singh (born 1 September 1949) is an Indian politician and a leader of the Bharatiya Janata Party. Singh was president of its state unit from 2006 to 2009. He was member of 11th Lok Sabha, 13th Lok Sabha and member of the 15th Lok Sabha, the lower house of the Parliament of India, representing Purvi Champaran constituency in Bihar state.