Hedemora is a town in Dalarna County and the seat of Hedemora Municipality, Sweden, with 7,273 inhabitants in 2010.Despite its small population, Hedemora is for historical reasons normally still referred to as a city, and as such the oldest in the county.Jonas Nilsson comes from Hedemora, as well as Kerstin Thorborg, Martin Matsbo, Bertil Norman and Ulf Stenlund. The diesel engines from Hedemora Diesel can be found in many ships built by Kockums, such as HSwMS Orion, the Collins class submarines in the Royal Australian Navy Submarine Service and the Archer class submarines in the Republic of Singapore Navy.
Hedemora is the home of Clifftop Games, an independent game developer whose published works include Kathy Rain and Whispers of a Machine.
The town Hedemora was chartered in 1446, which means it is the oldest and only medieval town in Dalarna.In 1754 and 1849 the town was severely hit by fire. The fire in 1754 destroyed 90 out of the 110 house lots in the town, including all the grain storages. However, the massive destruction made it possible to modernize the town structure, with straighter blocks and streets.Hedemora held Gustav I of Sweden's first mint, in use 1521–1524.In 1958, a motor racing circuit laid out in the city hosted the first Swedish motorcycle Grand Prix of MotoGP.