The 1965 Isle of Man TT motorcycle races were contested in six categories over the Snaefell Mountain Course. The Senior TT was won by Mike Hailwood on an MV Agusta.
3 Laps (113.00 Miles) Mountain Course.
| Place | Rider | Number | Country | Machine | Speed | Time | Points |
|---|---|---|---|---|---|---|---|
| 1 |  Phil Read
|
United Kingdom | Yamaha | 94.28 mph | 1:12.02.6 | 8 | |
| 2 |  Luigi Taveri
|
Switzerland | Honda | 94.15 mph | 1:12.08.4 | 6 | |
| 3 |  Mike Duff
|
Canada | Yamaha | 93.83 mph | 1:12.23.6 | 4 | |
| 4 | Derek Woodman
|
United Kingdom | MZ | 92.19 mph | 1:13.40.8 | 3 | |
| 5 |  Hugh Anderson
|
New Zealand | Suzuki | 91.62 mph | 1:14.08.0 | 2 | |
| 6 |  Ralph Bryans
|
United Kingdom | Honda | 90.89 mph | 1:14.44.0 | 1 |
3 Laps (113.00 Miles) Mountain Course.
| Place | Rider | Number | Country | Machine | Speed | Time | Points |
|---|---|---|---|---|---|---|---|
| 1 |  Max Deubel/Emil Horner
|
West Germany | BMW | 90.57 mph | 1:14.59.8 | 8 | |
| 2 | Fritz Scheidegger/J.Robinson
|
Switzerland | BMW | 89.11 mph | 1:15.13.8 | 6 | |
| 3 | Georg Auerbacher/R.Rykers
|
West Germany | BMW | 84.45 mph | 1:20.26.2 | 4 | |
| 4 | Hans Luthringhauser/H.Hahn
|
West Germany | BMW | 84.11 mph | 1:20.45.6 | 3 | |
| 5 | Tony Baitup/Graham Geer
|
United Kingdom | Triumph | 84.02 mph | 1:20.48.8 | 2 | |
| 6 | Charlie Freeman/B.Nelson
|
United Kingdom | Norton | 80.90 mph | 1:23.57.8 | 1 |
6 Laps (226.38 Miles) Mountain Course.
| Place | Rider | Number | Country | Machine | Speed | Time | Points |
|---|---|---|---|---|---|---|---|
| 1 |  Jim Redman
|
Rhodesia | Honda | 97.19 mph | 2:19.45.8 | 8 | |
| 2 | Mike Duff
|
Canada | Yamaha | 94.71 mph | 2:23.26.4 | 6 | |
| 3 | Frank Perris
|
United Kingdom | Suzuki | 93.99 mph | 2:24.32.0 | 4 | |
| 4 |  Tarquinio Provini
|
Italy | Benelli | 93.57 mph | 2:25.10.0 | 3 | |
| 5 |  Franta Stastny
|
Czechoslovakia | Jawa | 90.34 mph | 2:30.22.2 | 2 | |
| 6 | Dave Williams
|
United Kingdom | Mondial | 88.23 mph | 2:33.58.0 | 1 |
6 Laps (236.38 Miles) Mountain Course.
| Place | Rider | Number | Country | Machine | Speed | Time | Points |
|---|---|---|---|---|---|---|---|
| 1 | Jim Redman
|
Rhodesia | Honda | 100.72 mph | 2:14.55.2 | 8 | |
| 2 | Phil Read
|
United Kingdom | Yamaha | 99.35 mph | 2:16.44.4 | 6 | |
| 3 | Giacomo Agostini
|
Italy | MV Agusta | 98.52 mph | 2:17.53.4 | 4 | |
| 4 | Bruce Beale
|
Rhodesia | Honda | 93.29 mph | 2:25.37.2 | 3 | |
| 5 | Griff A.Jenkins
|
United Kingdom | Norton | 92.61 mph | 2:26.41.4 | 2 | |
| 6 | Gilberto Milani
|
Italy | Aermacchi | 92.49 mph | 2:26.52.4 | 1 |
3 Laps (113.00 Miles) Mountain Course.
| Place | Rider | Number | Country | Machine | Speed | Time | Points |
|---|---|---|---|---|---|---|---|
| 1 | Luigi Taveri
|
Switzerland | Honda | 79.66 mph | 1:25.16.6 | 8 | |
| 2 | Hugh Anderson
|
New Zealand | Suzuki | 78.85 mph | 1:26.08.8 | 6 | |
| 3 | Ernst Degner
|
West Germany | Suzuki | 77.04 mph | 1:28.10.0 | 4 | |
| 4 | Charlie Mates
|
United Kingdom | Honda | 65.61 mph | 1:43.41.4 | 3 | |
| 5 | Ian Plumridge
|
United Kingdom | Derbi | 63.43 mph | 1:47.05.4 | 2 | |
| 6 | Ernie L Griffiths
|
United Kingdom | Honda | 61.35 mph | 1:50.43.0 | 1 |
6 Laps (236.38 Miles) Mountain Course.
| Place | Rider | Number | Country | Machine | Speed | Time | Points |
|---|---|---|---|---|---|---|---|
| 1 | Mike Hailwood
|
United Kingdom | MV Agusta | 91.69 mph | 2:28.09.0 | 8 | |
| 2 | Joe Dunphy
|
United Kingdom | Norton | 90.28 mph | 2:30.28.8 | 6 | |
| 3 | Mike Duff
|
Canada | Matchless | 88.09 mph | 2:34.12.0 | 4 | |
| 4 | Ian Burne
|
United Kingdom | Norton | 87.63 mph | 2:35.01.06 | 3 | |
| 5 |  Selwyn Griffiths
|
United Kingdom | Matchless | 87.00 mph | 2:36.08.6 | 2 | |
| 6 | Billy McCosh
|
United Kingdom | Matchless | 86.90 mph | 2:36.19.4 | 1 |