The Accademia Musicale Chigiana (English: Chigiana Musical Academy) is a music institute in Siena, Italy. It was founded by Count Guido Chigi Saracini in 1932 as an international centre for advanced musical studies. It organises Master Classes in the major musical instruments as well as singing, conducting and composition. During the summer months a series of concerts are held under the title of Estate Musicale Chigiana.
The Academy occupies the 14th-century Palazzo Chigi-Saracini and contains an important library of musical and literary works of over 70,000 volumes as well as The Chigi Saracini Art Collection and The Musical Instrument Museum.