Alessandro Casolani (1552–1606), also called Alessandro della Torre, was an Italian painter of the late-Renaissance period, active mainly in Siena.

Casolani was born at Siena in 1552, and was the pupil of Ventura Salimbeni and of Cristoforo Roncalli. His works are principally in the churches of Siena, but are also found in Naples and Genoa. He also etched one plate, a Madonna. His son, Ilario Casolani was also a painter. Among the pupils of Casolani are Bernardino Capitelli, Sebastiano Folli, and Giovanni Biliverti.^{[citation needed]}

• Frescoes at Certosa di Pavia with Pietro Sorri

• Hobbes, James R. (1849). Picture collector's manual adapted to the professional man, and the amateur. London: T&W Boone. p. 46.
• Bryan, Michael (1886). Robert Edmund Graves (ed.). Dictionary of Painters and Engravers, Biographical and Critical. Vol. I: A-K. London: George Bell and Sons. pp. 246–247.

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