The District of Mat (Albanian: Rrethi i Matit) is one of the thirty-six districts of Albania, part of Dibër County. It is named after the Mat River, that flows through the district. It has a population of 48,803 (2010 estimate), and an area of 1,029 km². Its capital is Burrel. The district consists of the following municipalities:
At the beginning of the 15th century the Lord of Matja was Gjon Kastrioti, a father of Skanderbeg. When Skanderbeg began his rebellion against Ottomans he also became the lord of Mat and some other territories as well. A synod of Catholic archdiocese was held in Matja in 1462 by Pal Egnelli known for his baptismal formula.