Trekanten (Danish, Swedish, and Norwegian: "the triangle") may refer to:

Places Triangle Region (Denmark), a cooperation consisting of seven Danish municipalities on the Danish peninsula of Jutland and the island of Funen Trekanten (Helsinki), a small park in Kaartinkaupunki, Helsinki in Finland Trekanten (Stockholm), a small lake in southern-central Stockholm in Sweden Trekanten, Sweden, a village in Kalmar Municipality in Sweden Trekanten (Kristiansand), a neighborhood in the city of Kristiansand, Norway Trekanten (shopping center), a shopping centre in Asker municipality in Norway

See also Trehörningen (disambiguation) ("The Three-Corner")