Suwałki Region (Polish: Suwalszczyzna [suvalʂt͡ʂɨzna] ; Lithuanian: Suvalkų kraštas, Suvalkija) is a historical region around the city of Suwałki in northeastern Poland near the border with Lithuania. It encompasses the powiats of Augustów, Suwałki, and Sejny, and roughly corresponds to the southern part of the former Suwałki Governorate.
The region was disputed between Poland and Lithuania after their re-emergence as independent states following World War I. This dispute along with the Vilnius question was the cause of the Polish–Lithuanian War and the Sejny Uprising. The area has since been part of Poland, with the exception of the German and Soviet occupation during World War II. The Suwałki Region remains as the center of the Lithuanian minority in Poland.