A Lithuanian professional basketball player for the Memphis Grizzlies of the National Basketball Association (NBA). He was selected by the Toronto Raptors with the fifth overall pick in the 2011 NBA draft.

Valančiūnas has been a member of the Lithuania men's national basketball team since age 19. He won two EuroBasket silver medals in EuroBasket 2013 and EuroBasket 2015, earning All-Tournament honours in the latter. Valančiūnas also appeared in the documentary The Other Dream Team.