The Lithuania men's national under-18 and under-19 basketball team (Lithuanian: Lietuvos nacionalinė vaikinų jaunių iki 18 ir jaunimo iki 19 krepšinio rinktinė), is the representative for Lithuania in international under-18 and under-19 men's basketball competitions, and it is organized and run by the Lithuanian Basketball Federation.
The team represents Lithuania at the FIBA U18 EuroBasket and at the FIBA U19 World Cup.