Guido Alberti (* 20. April 1909 in Benevento; † 3. August 1996 in Rom) war ein italienischer Industrieller und Schauspieler. ()
Guido Alberti was an independently wealthy industrialist, whose father had built a nougat and wine business of which Guido became chairman of the board in the 1950's. He grew interested in acting and, after his official debut in Fellini's 8 1/2, grew more and more in demand through the cycles of the Italian film business. He even found himself cast in a few American productions such as Bobby Deerfield and SAVING GRACE. He married a famous astrologer Lucia Alberti who died the year before him in 1995.