The Prince of Murom was the kniaz, the ruler or sub-ruler, of the Rus' Principality of Murom, a lordship based on the city of Murom, now in Vladimir Oblast, Russia.
Gleb Vladimirovich, son of Vladimir the Great, ruled the principality in the early eleventh-century. Murom was part of the territory of the Principality of Chernigov in the late eleventh-century, controlled by the Sviatoslavichi clan, the descendants of Iaroslav the Wise; probably it was retained by Vsevolod Iaroslavich even after this Prince of Chernigov became Grand Prince in 1076.
Oleg Sviatoslavich, grandson of Iaroslav and Prince of Chernigov, ruled Murom through a posadnik in the early 1090s, and it was recognised as Oleg's sphere of influence at the Liubech Conference of 1097. Here Oleg's brother Davyd was made co-ruler of Chernigov, and Oleg's lands were parcelled out between Oleg, Davyd and their brother Iaroslav; the latter obtained Ryanzan and Murom.
In 1392 Vasily Dmitr'evich, Prince of Moscow and Grand Prince of Vladimir, obtained a patent from Khan Tokhtamysh authorising the annexation of the Murom principality, along with those of Nizhni Novgorod and Gorodets.