多博伊（塞尔维亚语：Добој）是位于波斯尼亚和黑塞哥维那北部波斯尼亚河畔的一座城市，人口102,546（1991年）。

Doboj (Cyrillic: Добој; pronounced [dôboj]) is a city and municipality in northern Bosnia and Herzegovina, Republika Srpska entity, on the river Bosna. Doboj is the largest national railway junction Railways Corporation of Bosnia and Herzegovina are located in Doboj. It is one of the oldest cities in the country and the most important urban center in northern Bosnia and Herzegovina.