| Mario Viens | |
| Position: | Goaltender |
| Height Ft: | 5 |
| Height In: | 7 |
| Weight Lb: | 166 |
| Played For: | Toronto Toros |
| Birth Date: | 7 August 1955 |
| Birth Place: | Cornwall, Ontario, Canada |
| Draft: | 197th overall |
| Draft Team: | Los Angeles Kings |
| Draft Year: | 1975 |
| Wha Draft: | 70th overall |
| Wha Draft Year: | 1975 |
| Wha Draft Team: | Toronto Toros |
| Career Start: | 1975 |
| Career End: | 1977 |
Mario Viens (born August 7, 1955) is a Canadian former professional ice hockey goaltender. He won the Michel Brière Memorial Trophy as the Most Valuable Player in the Quebec Major Junior Hockey League for his outstanding play with the Cornwall Royals during the 1974–75 QMJHL season.[1]