Rokitnik [rɔˈkitnik] is a village in the administrative district of Gmina Kiwity, within Lidzbark County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 3 kilometres (2 mi) north-east of Kiwity, 14 km (9 mi) east of Lidzbark Warmiński, and 42 km (26 mi) north-east of the regional capital Olsztyn.