| Konstantin of Rostov | |
| Succession: | Grand Prince of Vladimir |
| Reign: | 1216–1218 |
| Predecessor: | Yuri II of Vladimir |
| Successor: | Yuri II of Vladimir |
| Birth Date: | 18 May 1186 |
| Birth Place: | Rostov |
| Death Date: | 2 February 1218 |
| Death Place: | Vladimir, Russia |
| Spouse: | Maria Mstislavna of Smolensk |
| Issue: | Vasilko Konstantinovich Vsevolod Konstantinovich Vladimir Konstantinovich< |
| House: | Yurievichi |
| Father: | Vsevolod the Big Nest |
| Mother: | Maria Shvarnovna |
Konstantin Vsevolodovich (Russian: Константи́н Все́володович) (18 May 1186 in Rostov - 2 February 1218) was the eldest son of Vsevolod the Big Nest and Maria Shvarnovna.
In 1206 and 1207, he was the prince of Novgorod. In 1207, his father sent him to rule the towns of Rostov and Yaroslavl. In consequence of one domestic squabble, Vsevolod disinherited Konstantin on his deathbed and bequeathed his capital Vladimir to a younger son, Yuri II. Before his death, grand prince Vsevolod divided his territories between his sons; as soon as he died, the Vladimir-Suzdal war of succession (1212–1216) broke out between them.[1] In the Battle of Lipitsa (1216), Konstantin and his ally Mstislav of Novgorod soundly defeated Yuri and occupied Vladimir.
Upon Konstantin's death in 1218, Yuri returned to the throne. Konstantin's descendants, meanwhile, retained the towns of Rostov and Yaroslavl, where they would reign until the late 15th century. Thus, numerous princely families of Russia issue from this prince. Konstantin is also remembered for building the new Assumption Cathedral in Rostov and three brick cathedrals in Yaroslavl.