Dean DeFazio (born April 16, 1963) is a Canadian former professional ice hockey forward.
During the 1983–84 NHL season he played 22 games in the National Hockey League for the Pittsburgh Penguins.
Following his one season with Brantford, in which he accumulated 104 PIMs in 60 games, he was drafted by the Pittsburgh Penguins.
DeFazio played the next two years in Juniors splitting time between the Alexanders, Sudbury Wolves, and Oshawa Generals, all of the OHL.
DeFazio returned to Baltimore the following season splitting time between the Skipjacks and the International Hockey League's Flint Spirits.