Vasilko Konstantinovich (Russian: ???????? ??????????????; 7 December 1209 in Rostov – 4 March 1238 in Sherensky forest) was the first Prince of Rostov, Russia.
He was the son of Konstantin of Rostov, and the spouse of Maria of Chernigov.
He died in battle during the Mongol invasion and was succeeded by his son Boris.