Dziadkowice [d͡ʑatkɔˈvʲit͡sɛ] is a village in Siemiatycze County, Podlaskie Voivodeship, in north-eastern Poland.

It lies approximately 14 kilometres (9 mi) north of Siemiatycze and 66 km (41 mi) south of the regional capital Białystok.

According to the 1921 census, the village was inhabited by 107 people, among whom 67 were Roman Catholic, 36 Orthodox, and 4 Mosaic.

At the same time, 75 inhabitants declared Polish nationality, 32 Belarusian.

This Siemiatycze County location article is a stub.