Jadejiji Udai Kunwarba of Jamnagar in Gujarat Rajawatji Kushal Kanwarji of Jhilai in Jaipur Maharaja Ram Singh (28 July 1730 – September 1772), was the Rathore Ruler of Marwar Kingdom ,also called Jodhpur State.

[1] He succeeded on the death of his father, Maharaja Abhai Singh, on 18 June 1749.

However, he was defeated in battle by his uncle Maharaja Bakht Singh at Luniawas on 27 November 1750, and was expelled from Jodhpur.

In 1753, he reascended the gadi for the second time after deposing Maharaja Vijay Singh, his cousin.

Maharaja Ram Singh died at Jaipur in September 1772.