Derventa is a city in Republika Srpska, Bosnia and Herzegovina. It is situated in the Posavina region, northwest of the city of Doboj. As of 2013, the town has a total of 11,631 inhabitants, while the municipality has 27,404 inhabitants.

Stanari is a town and municipality in Republika Srpska, Bosnia and Herzegovina. It was established in 2014, after it split from Doboj municipality. As of 2013, it has a population of 6,958 inhabitants, while Stanari itself has a population of 1,015 inhabitants.