The Tezno District (pronounced as /sl/; Slovenian: Mestna četrt Tezno, German: Thesen[1]) is a city district of the City Municipality of Maribor in northeastern Slovenia. In 2014, the district had a population of 11,732.[2] After World War II, a large trench in Tezno became a major mass grave, which was later investigated by the Commission on Concealed Mass Graves in Slovenia.