Lejkowo [lɛi̯ˈkɔvɔ] (German: Röblau) is a village in the administrative district of Gmina Wielbark, within Szczytno County, Warmian-Masurian Voivodeship, in northern Poland.

It lies approximately 9 kilometres (6 mi) north-east of Wielbark, 16 km (10 mi) south of Szczytno, and 54 km (34 mi) south-east of the regional capital Olsztyn.