Tejstymy is a village in the administrative district of Gmina Kolno, within Olsztyn County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately south-west of Kolno and north-east of the regional capital Olsztyn.
Before 1772 the area was part of Kingdom of Poland, and in 1772âÂÂ1945 it belonged to Prussia and Germany (East Prussia).