Jadów [ˈjaduf] is a town in Wołomin County, Masovian Voivodeship, in east-central Poland.

In 1475, thanks to its location by a trade route, Jadów obtained a market privilege and the right to organize fairs.

The most valuable part of the urban area is the small market square with tenement houses around.

Along with the occupation of the village by German troops in 1939, many restrictions were enforced upon the Jewish population, including payments, wearing an identifying band on the arm, forced labor, etc.

In September 1942, a killing act (German “Aktion”) was enacted by Nazi troops, where approximately 800 Jews were shot to death.