Koziniec [kɔˈʑiɲɛt͡s] is a village in the administrative district of Gmina Jasionówka, within Mońki County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 5 kilometres (3 mi) north-west of Jasionówka, 13 km (8 mi) east of Mońki, and 38 km (24 mi) north of the regional capital Białystok.