| Succession: | Prince of Novgorod |
| Reign: | 1168–1170 |
| Predecessor: | Svyatoslav IV Rostislavich |
| Successor: | Rurik Rostislavich |
| Succession1: | Prince of Volhynia |
| Reign1: | 1170–1189 1189–1205 |
| Predecessor1: | Mstislav III Izyaslavich Vsevolod II Mstislavich |
| Successor1: | Vsevolod II Mstislavich Daniel Romanovich |
| Succession2: | Prince of Galicia |
| Reign2: | 1189 1198/1199–1205 |
| Predecessor2: | (?) Oleg Yaroslavich Vladimir II Yaroslavich |
| Successor2: | Andrew II Daniel Romanovich |
| Spouse: | Predslava Rurikovna Anna-Euphrosyne |
| Issue: | Fedora Romanovna Olena Romanovna Daniel Romanovich Vasylko Romanovich |
| House: | Rurik |
| Father: | Mstislav II of Kiev |
| Mother: | Agnes of Poland |
| Death Date: | 19 June 1205 (52-53) |
| Death Place: | Zawichost, Kingdom of Poland |
Roman Mstislavich[1] (– 19 June 1205), also known as Roman the Great,[2] was Prince of Novgorod (1168–1170), Volhynia (1170–1189; 1189–1205), and Galicia (1189; 1198/99–1205).[1] [3] [4] He founded the Romanovichi branch of Rurikids, which would rule Galicia–Volhynia until 1340.[5]
By seizing the throne of Galicia, he dominated the western regions of Kievan Rus'.[6] In the early 13th century, Byzantine chroniclers applied the imperial title of autocrate (αύτοκράτωρ) to him, but there is no evidence that he assumed it officially.[6]
He waged two successful campaigns against the Cumans, from which he returned with many rescued captives. The effect of Roman's victory was, however, undermined by new divisions among the princes of Rus'.[6]
Roman died in a battle with the Poles at the Battle of Zawichost.[6]