Museotheque is a complex of buildings belonging to the Lithuanian Theatre, Music and Cinema Museum. It houses seven open storage facilities for museum collections, a modern multifunctional event hall, a small conference hall and a space suitable for receptions.

The name of the complex combines the word "museum" with the Greek word thēkē, meaning "storage". Museum items are displayed here in open storage facilities, which can be viewed during guided tours. Museotheque has one of the most modern open and interactive museum storage facilities in Lithuania.