Sadashiv Rao Bhau (4 August 1730 – 14 January 1761) was the son of Chimaji Appa and Rakhmabai and the nephew of Peshwa Baji Rao I. He served as the Sarsenapati (commander-in-chief) of the Maratha army at the third battle of Panipat. He died fighting at the third battle of Panipat.