1985 South African Grand Prix
- Round
- 15 of 1985
- Circuit
- Kyalami
- Location
- Midrand, South Africa
- Dates
- —
- Format
- Standard weekend
- Winner
- Nigel Mansell
- Constructor
- Williams
- Entrant
- Williams-Honda
- Pole position
- Nigel Mansell
- Fastest lap
- Keke Rosberg
- Confidence
- reference
Classification
| Pos | Driver | Constructor | Grid | Laps | Points | Status |
|---|---|---|---|---|---|---|
| 1 | Nigel Mansell | Williams | 1 | 75 | 9 | — |
| 2 | Keke Rosberg | Williams | 3 | 75 | 6 | — · fastest lap |
| 3 | Alain Prost | McLaren | 9 | 74 | 4 | — |
| 4 | Stefan Johansson | Ferrari | 16 | 74 | 3 | — |
| 5 | Gerhard Berger | Arrows | 11 | 74 | 2 | — |
| 6 | Thierry Boutsen | Arrows | 10 | 74 | 1 | — |
| 7 | Martin Brundle | Tyrrell | 17 | 73 | — | — |
| DNS | Alan Jones | Lola | — | — | — | Unwell |
| DNF | Nelson Piquet | Brabham | 2 | 6 | — | Engine |
| DNF | Ayrton Senna | Team Lotus | 4 | 8 | — | Engine |
| DNF | Marc Surer | Brabham | 5 | 3 | — | Engine |
| DNF | Elio de Angelis | Team Lotus | 6 | 52 | — | Engine |
| DNF | Teo Fabi | Toleman | 7 | 3 | — | Engine |
| DNF | Niki Lauda | McLaren | 8 | 37 | — | Turbo |
| DNF | Riccardo Patrese | Alfa Romeo | 12 | 0 | — | Collision |
| DNF | Piercarlo Ghinzani | Toleman | 13 | 4 | — | Engine |
| DNF | Eddie Cheever | Alfa Romeo | 14 | 0 | — | Collision |
| DNF | Michele Alboreto | Ferrari | 15 | 8 | — | Turbo |
| DNF | Philippe Streiff | Tyrrell | 18 | 16 | — | Accident |
| DNF | Pierluigi Martini | Minardi | 19 | 45 | — | Radiator |
| DNF | Huub Rothengatter | Osella | 20 | 1 | — | Electrical |