Olivier Magnan-Grenier (born May 1, 1986) is a Canadian former professional ice hockey defenceman who played in the National Hockey League (NHL) with the New Jersey Devils.

On July 10, 2012, Magnan joined newly promoted Austrian club, Dornbirner EC, from his first European club abroad in Italy with HC Pustertal Wölfe.

[2] On September 1, 2020, having played eight seasons with Dornbirn and captaining the club, Magnan opted to return by agreeing to a one-year contract extension with the Bulldogs.

[3] Following his ninth season with Dornbirn, and his third as captain in 2020–21, Magnan announced his retirement from professional hockey after 15 years on July 9, 2021.

This biographical article relating to a Canadian ice hockey defenceman born in the 1980s is a stub.