Alessandro Andrei (born 3 January 1959) is a retired Italian former shot putter. He was born in Florence.
Andrei threw with his right hand, using the glide technique (at time many elite-level shot putters had switched to the spin/rotation style.) Andrei won the gold medal at the 1984 Summer Olympics held in Los Angeles, California. In 1987 he broke the world record three times in the same competition with successive throws of 22.72, 22.84 & 22.91 m (and finishing the sequence with a throw of 22.74 m). He was the first athlete in history to have a shot put series with all 6 throws over 22 meters, an accomplishment that wasn't repeated until 2020 by Ryan Crouser.
He is married to Agnese Maffeis.
Andrei won 12 national championships at individual senior level.