The Teatro Valle (literally Valley Theater) is a theatre and former opera house in Rome, Italy.

In the middle of the 19th century, it switched from staging opera and theatre to only performances of spoken drama.

A number of operas during this time premiered at the Valle, including Rossini's Demetrio e Polibio (1812), Torvaldo e Dorliska (1815), and La Cenerentola (1817); Mercadante's Il geloso ravveduto (1820); Donizetti's L'ajo nell'imbarazzo (1824), Olivo e Pasquale (1827), Il furioso all’isola di San Domingo (1833), and Torquato Tasso (1833); Pacini's La gioventù di Enrico V (1820); and Luigi Ricci’s L’orfana di Ginevra (1829), Il sonnambulo (1829), and Chi dura vince (1834), as well as many lesser-known works from local composers.

In June 2011, amidst rumours that the theatre was to be privatised and would lose its artistic independence, the building was squatted by a group of protesters consisting of actors, musicians, directors, technicians, and creative staff.

Since the reason for the eviction was the urgent nature of renovation work and nothing then happened, the theatre was re-occupied briefly in June 2016.