Kompletní výsledky závodníků GP 250 ccm roku 1963. Mistrem světa se stal Jim Redman na motocyklu Honda, druhý byl Tarquinio Provini a třetí Fumio Ito.
Celkové pořadí jezdců GP 250 ccm 1963
| Poz. | Jméno | Číslo | Národnost | Motocykl | Body | Vítězství |
| 1 |  Jim Redman |
Rhodesia | Honda | 44 | 4 | |
| 2 |  Tarquinio Provini |
Italy | Morini | 42 | 4 | |
| 3 |  Fumio Ito |
Japan | Yamaha | 26 | 1 | |
| 4 |  Tommy Robb |
United Kingdom | Honda | 20 | 0 | |
| 5 |  Luigi Taveri |
Switzerland | Honda | 13 | 0 | |
| 6 | Alan Shepherd |
United Kingdom | MZ | 11 | 0 | |
| 7 | Yoshikazu Sunako |
Japan | Yamaha | 9 | 0 | |
| 8 | Mike Hailwood |
United Kingdom | MZ | 8 | 1 | |
| 9 | Kunimitsu Takahashi |
Japan | Honda | 7 | 0 | |
| 10 | Bill Smith |
United Kingdom | Honda | 4 | 0 | |
| = | Umberto Masetti |
Italy | Moto Morini | 4 | 0 | |
| = | Phil Read |
United Kingdom | Yamaha | 4 | 0 | |
| 13 |  Stanislav Malina |
Czechoslovakia | CZ | 4 | 0 | |
| 14 | Silvio Grassetti |
Italy | Benelli | 3 | 0 | |
| = | Hiroshi Hasegawa |
Japan | Yamaha | 3 | 0 | |
| = |  László Szabó |
Hungary | MZ | 3 | 0 | |
| = |  Raúl Kissling |
Argentina | NSU | 3 | 0 | |
| 18 |  Jack Findlay |
Australia | FB-Mondial | 2 | 0 | |
| = | Ivan Schumann |
Argentina | NSU | 2 | 0 | |
| 20 | Gilberto Milani |
Italy | Aermacchi | 1 | 0 | |
| = | John Kidson |
United Kingdom | Moto Guzzi | 1 | 0 | |
| = |  Cas Swart |
Netherlands | Honda | 1 | 0 | |
| = | Chris Anderson |
United Kingdom | Aermacchi | 1 | 0 | |
| = |  Carlos Marfetan |
Uruguay | Parilla | 1 | 0 | |
| = | Isamu Kasuya |
Japan | Honda | 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)