"Blue Whale" (Russian: Синий кит, translit. Siniy kit), also known as the "Blue Whale Challenge", is a social network phenomenon dating from 2016 that is claimed to exist in several countries.
Siniy kit, inglise keeles Blue Whale), tuntud ka kui Blue Whale Challenge, on sotsiaalmeedia võrgustiku mäng, mis pärineb aastast 2016 ja mis väidetavalt eksisteerib mitmetes riikides.