The 1985 Canadian Grand Prix was a Formula One motor race held at Circuit Gilles Villeneuve in Montreal on 16 June 1985.

The 70-lap race was won by Italian driver Michele Alboreto, driving a Ferrari, with Swedish teammate Stefan Johansson second and Frenchman Alain Prost third in a McLaren-TAG.

The top ten was completed by Thierry Boutsen in the Arrows, Keke Rosberg in the Williams, Nelson Piquet in the Brabham and Patrick Tambay in the second factory Renault.

In mid-race, Johansson also passed de Angelis to set up a Ferrari 1-2, while Lauda retired with an engine failure after a "disappointing weekend.

Johansson had to contend with an intermittent misfire and when he got too close to Alboreto, the team leader simply turned up the turbo pressure and pulled away.