1985 San Marino motorcycle Grand Prix

Date1 September 1985

Official nameGrand Prix San Marino^[1]

LocationCircuito Internazionale Santa Monica

Course

• Permanent racing facility
• 3.488 km (2.167 mi)

  1985 San Marino Grand Prix

Race details
Race 12 of 12 races in the 1985 Grand Prix motorcycle racing season
Date	1 September 1985
Official name	Grand Prix San Marino[1]
Location	Circuito Internazionale Santa Monica
Course	Permanent racing facility 3.488 km (2.167 mi)
500cc
Pole position Rider Eddie Lawson Time 1:19.630 Fastest lap Rider Eddie Lawson Time 1:20.460 Podium First Eddie Lawson Second Wayne Gardner Third Randy Mamola
250cc
Pole position Rider Carlos Lavado Time 1:22.550 Fastest lap Rider Carlos Lavado Time 1:22.460 Podium First Carlos Lavado Second Anton Mang Third Loris Reggiani
125cc
Pole position Rider Fausto Gresini Time 1:25.780 Fastest lap Rider Bruno Kneubühler Time 1:25.140 Podium First Fausto Gresini Second Ezio Gianola Third Maurizio Vitali
80cc
Pole position Rider Jorge Martínez Fastest lap Rider Ian McConnachie Podium First Jorge Martínez Second Ian McConnachie Third Stefan Dörflinger

The 1985 San Marino motorcycle Grand Prix was the final race of the 1985 Grand Prix motorcycle racing season. It took place on 30 August–1 September 1985 at the Circuito Internazionale Santa Monica.

This was the last race of former world champion Franco Uncini.