Boris Vladimirovich of Rostov

Boris Vladimirovich (died 24 July 1015), baptized Roman, was a son of Vladimir the Great of Kyiv and prince of Rostov from about 1010. In 1015, while campaigning against the Pechenegs, he learned of his father's death and his half-brother Sviatopolk's seizure of Kyiv. Refusing to march on the throne, he kept only his own retinue.

On 24 July Sviatopolk's men wounded him in his tent and killed him as they carried him away. With his brother Gleb he became one of the first saints canonized in Kievan Rus, and was buried at Vyshgorod.