The Mehr! Theater (officially Mehr! Theater am Großmarkt) is a multi-purpose event venue in Hamburg, Germany. It was built into the Großmarkthalle, which is a protected historic building. It has a capacity of 3,500 people and hosted multiple events since its opening in 2015. Currently, it is the host of the Hamburg Mehr! Theatre production of Harry Potter and the Cursed Child, and was supposed to start on 15 March 2020 but was suspended due to the COVID-19 pandemic.[1] It launched on 5 December, 2021.