Mędrzyny [mɛnˈdʐɨnɨ] is an abandoned village in the administrative district of Gmina Purda, within Olsztyn County, Warmian-Masurian Voivodeship, in northern Poland.

It is located on the western shore of Lake Kośno in the region of Warmia.

[1] In 1863, the village had a population of 25, exclusively Polish by nationality and Catholic by confession.

[1] The National road 53 runs nearby, north of the village.

This Olsztyn County location article is a stub.