Divadlo na Fidlovačce (Fidlovačka Theatre) is a private theatre based in Prague. The theatre is in a building located in Nusle, that has been built as Thyl Theatre 1921. Several ensembles performed in the theatre, that had itself several names. In 1978 the building was closed and started to deteriorate. In January 1995 foundation Nadace Fidlovačka was established.