1963 FIM Motocross World Championship
The 1963 Motocross World Championship was the 7th edition of the Motocross World Championship organized by the FIM and reserved for 500cc and 250cc motorcycles.
Summary
Rolf Tibblin overtook the early championship points leader, Jeff Smith, to claim his second consecutive 500cc motocross world championship, with his countryman Sten Lundin taking second place. Tibblin took five Grand Prix victories riding for the Husqvarna factory racing team.A significant moment in motocross history occurred when ČZ factory rider Vlastimil Válek rode a 263cc two-stroke motorcycle to win the first moto of the 500cc Czechoslovak Grand Prix. The victory marked a turning point in motocross history, as it was the first win by a two-stroke powered motorcycle in the premier division of the Motocross World Championships. The FIM responded to protests from four-stroke manufacturers by increasing the minimum allowable displacement for two-stroke engines to 350cc.
Tibblin's Husqvarna teammate Torsten Hallman also claimed his second consecutive 250cc motocross world championship in dominating fashion by winning 8 of the 14 Grand Prix races. The ČZ factory continued to refine and improve their motorcycles, with riders Vlastimil Válek, Igor Grigoriev, and Karel Pilař finishing second, third, and fourth in the 250cc class final points standings.
Final standings
Points are awarded to the top 6 classified finishers. For the final 500cc championship standings, half of the competitors' results + 1 are retained. Thus with 12 500cc Grand Prix, the 7 best results are retained. For the final 250cc championship standings, the 7 best results are retained.| Position | 1st | 2nd | 3rd | 4th | 5th | 6th |
| Points | 8 | 6 | 4 | 3 | 2 | 1 |