Kompletní výsledky závodníků GP 250 ccm roku 1965. Mistrem světa se stal Phil Read na motocyklu Yamaha, druhý byl Michelle Duff a třetí Jim Redman.
Celkové pořadí jezdců GP 250 ccm 1965
| Poz. | Jméno | Číslo | Národnost | Motocykl | Body | Vítězství |
| 1 |  Phil Read |
United Kingdom | Yamaha | 56 | 7 | |
| 2 |  Michelle Duff |
Canada | Yamaha | 42 | 1 | |
| 3 |  Jim Redman |
Rhodesia | Honda | 34 | 3 | |
| 4 |  Heinz Rosner |
East Germany | MZ | 18 | 0 | |
| 5 | Derek Woodman |
United Kingdom | MZ | 15 | 0 | |
| 6 | Bruce Beale |
Rhodesia | Honda | 14 | 0 | |
| 7 |  Tarquinio Provini |
Italy | Benelli | 11 | 1 | |
| 8 |  Ramón Torras |
Spain | Bultaco | 10 | 0 | |
| 9 | Frank Perris |
United Kingdom | Suzuki | 9 | 0 | |
| 10 | Mike Hailwood |
United Kingdom | Honda | 8 | 1 | |
| 11 |  Frantisek Stastny |
Czechoslovakia | ČZ | 8 | 0 | |
| 12 |  Isamu Kasuya |
Japan | Honda | 6 | 0 | |
| 13 | Ralph Bryans |
United Kingdom | Honda | 6 | 0 | |
| 14 | Yoshimi Katayama |
Japan | Suzuki | 6 | 0 | |
| 15 | Giuseppe Visenzi |
Italy | Aermacchi | 5 | 0 | |
| 16 | Silvio Grassetti |
Italy | Morini | 4 | 0 | |
| = |  Barry Smith |
Australia | Bultaco | 4 | 0 | |
| = | Remo Venturi |
Italy | Benelli | 4 | 0 | |
| = | Bill Ivy |
United Kingdom | Yamaha | 4 | 0 | |
| 20 |  Ginger Molloy |
New Zealand | Bultaco | 4 | 0 | |
| 21 |  Jean-Claude Guénard |
France | Bultaco | 3 | 0 | |
| = | Gosuke Yamashita |
Japan | Honda | 3 | 0 | |
| 23 |  Günter Beer |
West Germany | Honda | 3 | 0 | |
| 24 | José Busquets |
Spain | Montesa | 2 | 0 | |
| = | Kevin Cass |
Australia | Cotton | 2 | 0 | |
| = | Rex Avery |
United Kingdom | Bultaco | 2 | 0 | |
| = | Hiroshi Hasegawa |
Japan | Yamaha | 2 | 0 | |
| 28 |  John Buckner |
United States | Yamaha | 1 | 0 | |
| = | Gilberto Milani |
Italy | Aermacchi | 1 | 0 | |
| = | Alberto Pagani |
Italy | Aermacchi | 1 | 0 | |
| = | Alain Barbaroux |
France | Aermacchi | 5 | 0 | |
| = | Dave Williams |
United Kingdom | FB-Mondial | 1 | 0 | |
| = | Bob Coulter |
United Kingdom | Bultaco | 1 | 0 |
- Zdroj https://en.wikipedia.org
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- kurzíva = nejrychlejší kolo závodu
- výsledek tučně = poleposition
- Ret = nedokončil závod (retired)
- NC = neklasifikován (non-classified)
- C = závod zrušen (cancelled)
- EX = vyloučen (excluded)
- DNS = nenastoupil do závodu (did not start)
- DSQ = diskvalifikován (disqualified)
- DNQ = nekvalifikoval se (did not qualified)
- DNP = nezúčastnil se (did not participate)
- WD = výsledek anulován (withdrew)
