This list of 1985 motorsport champions is a list of national or international auto racing series with a Championship decided by the points or positions earned by a driver from multiple races.
| Series | Driver | Season article |
|---|---|---|
| World Formula K Championship 135 cc | Mike Wilson | |
| World Formula E SuperKart Championship 250 cc |  Poul Petersen | |
| Juniors World Cup 125 cc |  Andrea Gilardi | |
| Series | Driver | Season article | |
|---|---|---|---|
| World Sportscar Championship | C1:  Derek BellC1: Hans-Joachim Stuck | 1985 World Sportscar Championship season | |
| C1 Teams: Rothmans Porsche | |||
| C2: Gordon Spice C2: Ray Bellm | |||
| C2 Teams: Spice Engineering | |||
| IMSA GT Championship | GTP:  Al Holbert | 1985 IMSA GT Championship season | |
| Lights: Jim Downing | |||
GTO:  John Jones | |||
| GTU: Jack Baldwin | |||
| Australian GT Championship |  Bryan Thomson | 1985 Australian GT Championship season | |
| Australian Sports Car Championship | Chris Clearihan | 1985 Australian Sports Car Championship |
| Series | Driver/Co-Driver | Season article |
|---|---|---|
| World Rally Championship |  Timo Salonen Seppo Harjanne | 1985 World Rally Championship season |
Manufacturer:  Peugeot | ||
