Göteborgsoperan, Opera house in Gothenburg Municipality, Sweden.

Göteborgsoperan is a 160-metre-long, 85-metre-wide opera house at Lilla Bommen on the south bank of the Göta älv, designed by Lund & Valentin arkitekter with Jan Izikowitz as architect. Completed in 1994 at a cost of 558 million kronor, it contains a classical-style auditorium with 1,276 seats, a 500-square-metre main stage, two side stages and a rear stage, plus four movable platforms and a 14-metre revolving stage.

Construction began in September 1989 after a local fundraising drive that drew up to 6,000 contributors; ground was broken in June 1991 and the house was inaugurated in October 1994, at a cost of 558 million kronor. The opening ran over three evenings from 30 September 1994, with Carl XVI Gustaf and staged appearances by Gustav II Adolf and Gustav III declaring the house inaugurated, and Birgit Nilsson as godmother.

The house's first opera production in 1994 was Aniara, followed by The Marriage of Figaro and Madama Butterfly. Its programme has since mixed opera, ballet and musicals, staging over 270 different productions between 1994 and 2006, including Kristina från Duvemåla, West Side Story and Les Misérables. The Gothenburg Opera Dance Company, 38 full-time dancers, has shifted from classical ballet to contemporary dance under artistic director Katrín Hall since 2016.

The entrance is on Christina Nilssons Gata at Packhuskajen, on the south bank of the Göta älv at Lilla Bommen, where the city's old county prison once stood. The auditorium seats 1,276 across stalls and balconies, and the orchestra pit holds about 100 musicians. Five complete stage sets can be stored in the house at once, in five areas the size of the main stage.

The house can store five complete stage sets at once, in five areas each the size of the main stage, and move, swap and reassemble them for the next evening's performance. The main stage measures 500 square metres, with a 14-metre revolving stage that moves forwards, backwards and sideways, plus four movable platforms each carrying 15 tonnes.