Drohiczyn is a town in Siemiatycze County, Podlaskie Voivodeship, Poland. The town has a population of 2,110 and is situated on the bank of the Bug River. Drohiczyn has a long and rich history, as in the past it was one of the most important cities of the region of Podlachia. Currently, it is the seat of Roman Catholic Diocese of Drohiczyn.

Podlaskie Voivodeship is a voivodeship (province) in northeastern Poland. The name of the province refers to the historical region of Podlachia, and part of its territory corresponds to this region. The capital and largest city is Białystok.