Mariatorget, Public park in Södermalm, Stockholm, Sweden.

Mariatorget is a public park in Södermalm with wide gravel pathways bordered by tall lime trees leading to a central bronze fountain. The space includes a children's playground, public restrooms, a kiosk, and accessible routes that connect smoothly to the surrounding neighborhood.

The square was laid out in 1759 after the Mariabrand fire destroyed over 300 farms nearby, partly as a firebreak. It was long called Adolf Fredriks torg, a name granted in 1768 on the king's condition that no executions take place there. In 1959 it was renamed Mariatorget to avoid confusion with Adolf Fredrikskyrkan in Norrmalm.

The central fountain depicting Thor's fishing brings Nordic mythology into the heart of the neighborhood, connecting ancient stories to everyday urban life. Residents and visitors use the benches beneath the lime trees as natural meeting points throughout the year.

The park measures 140 by 80 metres, with the planted section 130 by 60 metres (0.8 hectares). Gravel paths circle the central fountain, and the Karlavägs fence, installed during the 1956–1958 restoration, runs along the edges. The Mariatorget metro station lies a few hundred metres south of the square.

Since autumn 2012, four sound installations with hidden speakers have been placed around the square. Three, called "Ljudrum", draw on earth, fire, water and air, while the fourth, "Spelrum", responds to the movement of a swing. They were designed by Björn Hellström of Konstfack with the Interactive Institute and Stockholm University.