The 2016 SEABA Under-18 Championship was the qualifying tournament for Southeast Asia Basketball Association at the 2016 FIBA Asia Under-18 Championship. The tournament was the tenth edition and took place in Medan, Indonesia from 23 April to 28 April 2016. Due to the Philippines' top five finish at the 2014 FIBA Asia Under-18 Championship, the subzone was allotted another spot to be contested, totaling to three spots for SEABA in the Asian tournament.
All times are in Western Indonesian Time ()
Top three teams qualify to the 2016 FIBA Asia Under-18 Championship.