Knis-Podewsie [ˈknis pɔˈdɛfɕɛ] is a settlement in the administrative district of Gmina Ryn, within Giżycko County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 5 kilometres (3 mi) north-west of Ryn, 20 km (12 mi) south-west of Giżycko, and 69 km (43 mi) east of the regional capital Olsztyn.