The ORWOhaus is a Berlin-based musical collective. It is located in a 1970s industrial building in Marzahn-Hellersdorf district of Berlin.
Built for the ORWO company which produced photographic film, by 1990 the building was owned by the property company TLG, and was mostly empty, with some floors used by other companies for storage. From 1998 it was increasingly used by bands for rehearsal space, thanks to its isolation in an industrial estate. In June 2004 the lack of statutory fire protection meant that the owners had to close the building. By that time approximately 400 musicians had found a place for rehearsals, and had extensively adapted and furnished their rooms.