The Theater am Aegi is an event venue on Aegidientorplatz square in Hannover, the capital of Lower Saxony, Germany.

After a fire, it was rebuilt as a theatre only, opened in 1967, and then mainly as a venue for drama performances of the state-run Staatstheater Hannover.

After a new theatre was built for that company in 1992, Theater am Aegi returned to its traditional role of a venue for various events, including congress, private functions and representation of the city.

[1] The site of today's theatre at the Aegidientorplatz (Aegidien gate square) was used as a cinema venue from 1920 in the hall of the hotel Vier Jahreszeiten seating 1,400 spectators.

When the Schauspiel Hannover moved to a new building in 1992, the Theater am Aegi was threatened with closure, but committed citizens developed a new concept for usage as a multifunctional stage.

[4] Beginning with the 2010/11 season, the theatre served also as a venue of the Theater für Niedersachsen [de], a fusion of the Landesbühne Hannover and the Stadttheater Hildesheim.