1965 FIA Formula One World Championship
- Drivers' champion
- Jim Clark
- Team
- Team Lotus
- Points
- 54
- Runner-up
- Graham Hill — 40
- Margin
- 14
- Constructors' champion
- Team Lotus
- Rounds
- 10
- Engine formula
- 1.5 L naturally aspirated
- Tyres
- Dunlop, Firestone, Goodyear
Clark won the Indianapolis 500 and the F1 title in the same year, skipping Monaco to do so.
Races
| Rd | Grand Prix | Circuit | Dates | Winner | Constructor | Pole | Fastest lap |
|---|---|---|---|---|---|---|---|
| 1 | South African Grand Prix | Prince George Circuit | — | Jim Clark | Team Lotus | Jim Clark | Jim Clark |
| 2 | Monaco Grand Prix | Circuit de Monaco | — | Graham Hill | BRM | Graham Hill | Graham Hill |
| 3 | Belgian Grand Prix | Circuit de Spa-Francorchamps | — | Jim Clark | Team Lotus | Graham Hill | Jim Clark |
| 4 | French Grand Prix | Charade | — | Jim Clark | Team Lotus | Jim Clark | Jim Clark |
| 5 | British Grand Prix | Silverstone Circuit | — | Jim Clark | Team Lotus | Jim Clark | Graham Hill |
| 6 | Dutch Grand Prix | Circuit Zandvoort | — | Jim Clark | Team Lotus | Graham Hill | Jim Clark |
| 7 | German Grand Prix | Nurburgring Nordschleife | — | Jim Clark | Team Lotus | Jim Clark | Jim Clark |
| 8 | Italian Grand Prix | Autodromo Nazionale Monza | — | Sir Jackie Stewart | BRM | Jim Clark | Jim Clark |
| 9 | United States Grand Prix | Watkins Glen | — | Graham Hill | BRM | Graham Hill | Graham Hill |
| 10 | Mexican Grand Prix | Autodromo Hermanos Rodriguez | — | Richie Ginther | Honda | Jim Clark | Dan Gurney |
Championship standings after round 10
| Pos | Driver | Team | Points |
|---|---|---|---|
| 1 | Jim Clark | — | 54 |
| 2 | Graham Hill | — | 40 |
| 3 | Sir Jackie Stewart | — | 33 |
| 4 | Dan Gurney | — | 25 |
| 5 | John Surtees | — | 17 |
| 6 | Lorenzo Bandini | — | 13 |
| 7 | Richie Ginther | — | 11 |
| 8 | Mike Spence | — | 10 |
| 9 | Bruce McLaren | — | 10 |
| 10 | Sir Jack Brabham | — | 9 |
| 11 | Denny Hulme | — | 5 |
| 12 | Jo Siffert | — | 5 |