Pier Giovanni "Gianni" Poli (born 5 November 1957 in Lumezzane) is a former Italian long-distance runner who won the New York City Marathon in 1986.
He also won the silver in medal in the marathon at the 1990 European Athletics Championships.
Gianni Poli participated at one edition of the Summer Olympics (1988), he has 12 caps in national team from 1979 to 1990.
Gianni Poli has won one time the individual national championship.