Brok [brɔk] is a town in Ostrów Mazowiecka County, Masovian Voivodeship, Poland.

[1] The heritage sights of Brok include the Gothic-Renaissance Saint Andrew church, two preserved historic windmills, ruins of the Bishops' Castle, the town hall and various historic houses.

There are also monuments to Polish statesman and leader Józef Piłsudski and to Polish naturalist and inventor, one of the fathers of ergonomics, Wojciech Jastrzębowski.

Additionally, the S8 highway runs nearby, northwest of the town.

This Masovian Voivodeship location article is a stub.