HH Maharana Sir Shambhu Singh GCSI (22 December 1847 – 7 October 1874), was the Sisodia Rajput ruler of the Princely State of Udaipur reigning from 1861 to 1874.

Unlike his predecessors, the financial conditions at the time were relatively stable and progressive and he continued to replenish the state treasury after he was provided full powers as the ruler of Mewar.

In spite of being formally uneducated, he gave education supreme importance and expanded various existing schools and introduced numerous new ones.

But with his untimely death at a young age of 27 years, his dreams of the revival of his homeland to the ancient golden times were stalled.

He left behind no heir and his nephew Sajjan Singh, who himself was a minor at the time of his death; succeeded him and went ahead in continuation with the reforms paved by his predecessor.