Shivaram Hari Rajguru (24 August 1908 – 23 March 1931)[1][2] was an Indian independence activist from Maharashtra (then Bombay Presidency), known mainly for his involvement in the assassination of a British police officer named John Saunders.

He was a member of the Hindustan Socialist Republican Association, who wanted India to be free from British Raj by any means possible.

Rajguru, along with other revolutionaries like Ram Prasad Bismil and Ashfaqulla Khan, played a significant role in this daring act.

Rajguru became a colleague of Bhagat Singh & Sukhdev Thapar, and took part in the assassination of a British police officer, J. P. "John" Saunders, at Lahore on 17 December 1928.

A local organization, the Hutatma Rajguru Smarak Samiti (HRSS), hoists the national flag here on Republic Day since 2004.