The Duboka (Дубoкa, "Deep river") is a left tributary of the Vrbanja in Bosnia.

It rises under Međugorje Mountain (1,116 m), and Bojići village (Skender Vakuf), around 1,030 meters above sea level.

[1][2][3][4] Between Mekote and Gradine localities, Duboka enters into deep canyon, from which originated its name, as well as the village through which flows.

The mouth to Vrbanja river is on its large curve between Grabovička rijeka and Tovarnica highland, on 430 meters above sea level.

During the War in Bosnia, in the canyon of Duboka, around 200 Bosniaks were captured and transported to Elementary Scholl in Grabovica (mouth of Grabovička rijeka) and still remain missing today.