Raja Shivaji (Marathi: तंजावरचे शिवाजी) (fl. 17 March 1832 – 29 October 1855) of the Bhonsle dynasty of Thanjavur in India, was the son of Raja Serfoji II and ruled the fortress of Thanjavur and its surroundings from 1832 to 1855. He was the last Raja of Thanjavur known to wield any authority.