Jelgava Palace or historically Mitau Palace is the largest Baroque-style palace in the Baltic states. It was built in the 18th century based on the design of Bartolomeo Rastrelli as a residence for the Dukes of Courland in their capital of Mitau. The Dukes of Courland also had a summer palace by Rastrelli, about 40 kilometers to the southeast, called Rundāle Palace.

Francesco Bartolomeo Rastrelli was an Italian architect who worked mainly in Russia. He developed an easily recognizable style of Late Baroque, both sumptuous and majestic. His major works, including the Winter Palace in Saint Petersburg and the Catherine Palace in Tsarskoye Selo, are famed for extravagant luxury and opulence of decoration.