Bostancık is an agricultural village in the Besni district of Adıyaman Province, Turkey, 25 km east of Besni and 30 km south of Adıyaman. Its altitude is 1050 m. Bostancık is best known for its aggressive dogs and high quality pale-coloured raisins. Its population is 44.
Villagers principally raise wheat, cotton, melon, watermelon, corn, raisins, and lentil. The village also produces "bastık" (pestil), sucuk (sausage), and molasses.
There are ruins next to the village. It was ruined by floods about 80 years ago.