Ełk

Ełk (; ) is a city in northeastern Poland with 61,677 inhabitants as of December 2021. It is the seat of Ełk County in the Warmian–Masurian Voivodeship. It lies on the shore of Ełk Lake, which was formed by a glacier, and is surrounded by extensive forests. It is the largest city of Masuria.

diocese of the Catholic Church in Poland