Theater am Großmarkt, Theater venue in Hammerbrook, Hamburg, Germany

Theater am Großmarkt is a theatre inside the protected Großmarkthalle, a hall built by Bernhard Hermkes in 1962 with prestressed concrete arches and a height of about 20 metres. Its auditorium seats 1,670 for the two-part stage play Harry Potter and the Cursed Child. A circular pavilion by London architects Carmody Groarke stands in front, housing the box office and a café.

The building originally opened in 1962 as a wholesale market hall for vegetables and fruit, designed by architect Bernhard Hermkes. The conversion into a theater took place in 2015, repurposing the protected structure for a completely new cultural use.

The theatre's name comes from its setting in the Großmarkthalle, and its programme has ranged from rock concerts by Iggy Pop and the Editors to musicals such as Dirty Dancing and We Will Rock You. Since December 2021 it has hosted the German-language premiere of Harry Potter and the Cursed Child, performed as a two-part play until a compact 3.5-hour version replaced it in February 2023.

The hall sits between the Elbe bridges and Hamburg Hauptbahnhof, with 500 parking spaces on the forecourt. The round pavilion by Carmody Groarke, placed in front of the theatre, holds the box office and a lounge with food and drink. The auditorium holds 1,670 seats for the two-part staging.

A British wizardry saga had its German premiere here in 2021 and attracted audiences specifically interested in that story. The production required special stage technology and effects that were installed specifically for this venue.