Orlando furioso RV 819 (Italian pronunciation: [orˈlando fuˈrjoːzo], Teatro San Angelo, Venice 1714) is a three-act opera surviving in manuscript in Antonio Vivaldi's personal library, only partly related to his better known Orlando furioso (RV 728) of 1727. It is a recomposition of an Orlando furioso written by Giovanni Alberto Ristori which had been very successfully staged by Vivaldi and his father's impresa in 1713, and whose music survives in a few fragments retained in the score of RV 819. Therefore, Vivaldi's first cataloguer Peter Ryom did not assign the opera a RV number, but catalogued it as RV Anh. 84. The libretto was by Grazio Braccioli.

Librettist Grazio Braccioli
Date of composition (Incomplete)
Premiered 1714
Type Opera
Catalogue RV 819
Autotranslations beta Antonio Vivaldi: Orlando furioso, RV 819
Antonio Vivaldi: Orlando furioso, RV 819
Antonio Vivaldi: Orlando furioso, RV 819