Harstad or Hárstták is the second-most populated municipality in Troms county, Norway. It is mostly located on the large island of Hinnøya. The municipal center is the town of Harstad, which is the most populous town in Central Hålogaland and the third-largest in all of Northern Norway. The town was incorporated in 1904. Villages in the municipality include Elgsnes, Fauskevåg, Gausvika, Grøtavær, Kasfjord, Lundenes, Nergården and Sørvika.