Quartetto Italiano (English: Italian Quartet) was a string quartet founded in 1945. They made their debut in 1945 at Carpi when all four players were still in their early 20's. They were originally named Nuovo Quartetto Italiano before dropping the "Nuovo" tag in 1951. They are particularly noted for their recording of the complete cycle of Beethoven string quartets, made between 1967 and 1975. The quartet disbanded in 1980.

The secretary and historian of the Quartet was Guido Alberto Borciani (1920-2008), brother of Paolo and founder of the Premio Paolo Borciani.