The 1964 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 |  Luigi Taveri | Switzerland | Honda | 92.14 mph | 1:13.43.0 | 8 | ||
| 2 | Jim Redman | Rhodesia | Honda | 92.08 mph | 1:13.46.0 | 6 | ||
| 3 | Ralph Bryans | United Kingdom | Honda | 91.22 mph | 1:14.28.2 | 4 | ||
| 4 | Stanislav Malina | Czechoslovakia | CZ | 85.16 mph | 1:19.45.4 | 3 | ||
| 5 | Walter Scheimann | West Germany | Honda | 83.24 mph | 1:21.36.0 | 2 | ||
| 6 | Bruce Beale | Rhodesia | Honda | 82.69 mph | 1:22.08.8 | 1 |
3 Laps (113.00 Miles) Mountain Course.
| Place | Rider | Number | Country | Machine | Speed | Time | Points | |
|---|---|---|---|---|---|---|---|---|
| 1 | Max Deubel/Emil Horner | West Germany | BMW | 89.12 mph | 1:16.13.0 | 8 | ||
| 2 | Colin Seeley/W.Rawlings | United Kingdom | FCSB | 86.76 mph | 1:18.17.6 | 6 | ||
| 3 | Georg Auerbacher | West Germany | BMW | 84.45 mph | 1:20.26.2 | 4 | ||
| 4 | Arseneus Butscher | West Germany | BMW | 83.53 mph | 1:21.19.0 | 3 | ||
| 5 | Tony Baitup/G Geer | United Kingdom | Triumph | 79.01 mph | 1:25.58.0 | 2 | ||
| 6 | Terry Vinicombe | United Kingdom | Triumph | 78.94 mph | 1:26.02.8 | 1 |
6 Laps (226.38 Miles) Mountain Course.
| Place | Rider | Number | Country | Machine | Speed | Time | Points | |
|---|---|---|---|---|---|---|---|---|
| 1 | Jim Redman | Rhodesia | Honda | 97.45 mph | 2:19.23.6 | 8 | ||
| 2 | Alan Shepherd | United Kingdom | MZ | 96.97 mph | 2:20.04.6 | 6 | ||
| 3 |  Alberto Pagani | Italy | Paton | 86.20 mph | 2:37.35.8 | 4 | ||
| 4 | Stanislav Malina | Czechoslovakia | CZ | 85.51 mph | 2:38.52.8 | 3 | ||
| 5 | Roy Boughey | United Kingdom | Yamaha | 80.06 mph | 2:49.40.6 | 2 | ||
| 6 | C.W.Hunt | United Kingdom | Aermacchi | 79.25 mph | 2:51.24.2 | 1 |
6 Laps (236.38 Miles) Mountain Course.
| Place | Rider | Number | Country | Machine | Speed | Time | Points | |
|---|---|---|---|---|---|---|---|---|
| 1 | Jim Redman | Rhodesia | Honda | 98.51 mph | 2:17.55.4 | 8 | ||
| 2 | Phil Read | United Kingdom | AJS | 93.58 mph | 2:25.00.6 | 6 | ||
| 3 |  Mike Duff | Canada | AJS | 93.46 mph | 2:25.21.4 | 4 | ||
| 4 | Derek Minter | United Kingdom | Norton | 93.17 mph | 2:25.48.2 | 3 | ||
| 5 | Derek Woodman | United Kingdom | AJS | 92.02 mph | 2:27.37.6 | 2 | ||
| 6 | Joe Dunphy | United Kingdom | AJS | 91.43 mph | 2:28.34.6 | 1 |
3 Laps (113.00 Miles) Mountain Course.
| Place | Rider | Number | Country | Machine | Speed | Time | Points | |
|---|---|---|---|---|---|---|---|---|
| 1 |  Hugh Anderson | New Zealand | Suzuki | 80.64 mph | 1:24.13.4 | 8 | ||
| 2 |  Ralph Bryans | United Kingdom | Honda | 79.68 mph | 1:25.14.8 | 6 | ||
| 3 |  Isao Morishita | Japan | Suzuki | 79.67 mph | 1:25.15.4 | 4 | ||
| 4 | Hans-Georg Anscheidt | West Germany | Kreidler | 79.63 mph | 1:25.18.0 | 3 | ||
| 5 | Mitsuo Itoh | Japan | Suzuki | 79.57 mph | 1:25.22.4 | 2 | ||
| 6 | Naomi Taniguchi | Japan | Honda | 79.39 mph | 1:25.33.0 | 1 |
6 Laps (236.38 Miles) Mountain Course.
| Place | Rider | Number | Country | Machine | Speed | Time | Points | |
|---|---|---|---|---|---|---|---|---|
| 1 | Mike Hailwood | United Kingdom | MV Agusta | 100.95 mph | 2:14.33.8 | 8 | ||
| 2 | Derek Minter | United Kingdom | Norton | 98.47 mph | 2:17.56.6 | 6 | ||
| 3 | Fred Stevens | United Kingdom | Matchless | 96.40 mph | 2:20.54.6 | 4 | ||
| 4 | Derek Woodman | United Kingdom | Matchless | 96.28 mph | 2:21.05.6 | 3 | ||
| 5 | Griff A.Jenkins | United Kingdom | Norton | 94.95 mph | 2:23.04.4 | 2 | ||
| 6 | Billy McCosh | United Kingdom | Matchless | 94.84 mph | 2:23.14.4 | 1 |