Mstislav Rostislavich of Smolensk, also known as the Brave, was a 12th-century prince who held various territories including Smolensk, Toropets, and Novgorod. Born around 1143 to Rostislav Mstislavich, he was a prominent figure in the political struggles of the Rus' principalities. He participated in significant military actions, such as defeating the Polovtsy in 1168, and was later elected as the prince of Novgorod in 1179. He died in Veliky Novgorod in 1180 after leading military campaigns against the Chud tribes.