Wszerzecz [ˈfʂɛʐɛt͡ʂ] is a village in the administrative district of Gmina Śniadowo, within Łomża County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 10 kilometres (6 mi) north of Śniadowo, 12 km (7 mi) south-west of Łomża, and 83 km (52 mi) west of the regional capital Białystok.