Upper Lusatia is a historical region in Germany and Poland. Along with Lower Lusatia to the north, it makes up the region of Lusatia, named after the Slavic Lusici tribe. Both parts of Lusatia are home to the West Slavic minority group of the Sorbs.

Upper Sorbian, occasionally referred to as Wendish, is a minority language spoken by Sorbs, in the historical province of Upper Lusatia, which is today part of Saxony, Germany. It is grouped in the West Slavic language branch, together with Lower Sorbian, Czech, Polish, Slovak and Kashubian.