Teatro Mancinelli is the main theater stage in Orvieto for live dramatic and musical performances.

Initially the theater was dedicated initially to the muses Talia, Melpomene, and Euterpe, but in 1922 the city renamed the theater to honor two brother and fellow citizens who had gained international reputation as musicians and composers, Marino and Luigi Mancinelli.

Some medallions were frescoed by Cesare Fracassini with portraits of famed Italian opera composers: Rossini, Bellini, Donizzetti, Verdi, Mercadante, and Pacini; poets: Metastasio, Alfieri, Goldoni, and Romani: and choreagraphers Rota and Viganò.

The sipario (theater curtain) was painted by Fracassini, depicting the expulsion by Belisarius of the Goths from Orvieto in 538.

[1] Closed for some years, in 1993 a restoration of the interior was completed and the theater is the venue for drama, opera, dance and other spectacles.