Maharaja Ram Singh (28 July 1730 - September 1772), was the Raja of Marwar Kingdom, also called Jodhpur State, (First Reign 18 June 1749 - July 1751 and Second Reign 31 January 1753 - September 1772). He succeeded on the death of his father, 18 June 1749. But he was defeated in battle by his uncle Bakht Singh at Luniawas, 27 November 1750 and was expelled from Jodhpur and sought refuge in Jaipur, July 1751.He reascended the gadi for the second time after deposing Maharaja Vijay Singh, 1753. He died at Jaipur, September 1772.