Jankowo-Młodzianowo [janˈkɔvɔ mwɔd͡ʑaˈnɔvɔ] is a village in the administrative district of Gmina Nowogród, within Łomża County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 5 kilometres (3 mi) south-west of Nowogród, 18 km (11 mi) west of Łomża, and 90 km (56 mi) west of the regional capital Białystok.