1983 250cc Grand Prix leading entries:
| no. | rider | entrant | bike |
| 1 | Jean-Louis Tournadre FRA | Team Sonauto Gauloises | Yamaha |
| 10 | Christian Sarron FRA | Team Sonauto Gauloises | Yamaha |
| 26 | Thierry Rapicault FRA | Team Sonauto Gauloises | Yamaha |
| 2 | Jacques Cornu SUI | Höstettler | Yamaha |
| 3 | Roland Freymond SUI | Elf Moto Racing Team | Armstrong-Rotax |
| 4 | Martin Wimmer BRD | Team Mitsui Yamaha | Yamaha |
| 21 | Donny Robinson NIR* | Team Mitsui Yamaha | Yamaha |
| 32 | Alan Carter ENG# | Team Mitsui Yamaha | Yamaha |
| 62 | Paul Tinker ENG** | Team Mitsui Yamaha | Yamaha |
| 5 | Carlos Lavado VEN | Venemotos Racing Team | Yamaha |
| 23 | Iván Palazzese VEN | Venemotos Racing Team | Yamaha |
| 6 | Didier de Radiguès BEL | Team Johnson Elf | Chevallier |
| 7 | Paolo Ferretti ITA* | Lumaca | MBA / Yamaha |
| 8 | Jean-Louis Guignabodet FRA | Team Green | Yamaha |
| 9 | Jeff Sayle AUS* | Team Emco | Bartol |
| 11 | Christian Estrosi FRA | Pernod | Pernod |
| 32 | Jacques Bolle FRA** | Pernod | Pernod |
| 12 | Jean-François Baldé FRA | TopCard Krauser | Chevallier |
| Bernad Fau FRA*** | TopCard Krauser | Chevallier | |
| 14 | Patrick Fernandez FRA | Bartol / Yamaha | |
| 15 | Sito Pons ESP* | Kobas Motorcycles | Kobas |
| 16 | Angel Nieto ESP* | Yamaha | |
| 19 | Manfred Herweh BRD | Massa Real Racing Team | Real-Rotax |
| 20 | Tony Head ENG | Armstrong-Rotax | |
| 25 | Reinhold Roth BRD | Römer Racing Team | Yamaha |
| 34 | Bruno Lüscher SUI# | Yamaha | |
| 34 | Massimo Matteoni ITA | Team Forever | Yamaha |
| 35 | Jacques Bolle FRA | Team Go-West | Yamaha |
| 36 | Jean-Michel Mattioli FRA# | Yamaha | |
| 41 | Bernard Fau FRA# | Yamaha | |
| 42 | Guy Bertin FRA | MBA | |
| 44 | Hervé Guilleux FRA# | Kawasaki | Kawasaki |
| 46 | Teruo Fukuda JAP* | Yamaha | |
| 48 | Jean-Marc Toffolo LUX# | RK | Morena-Rotax |
| 49 | Donnie McLeod SCO# | Dalmac Racing | Yamaha |
| 54 | Edwin Weibel SUI# | Yamaha | |
| 56 | Harald Eckl BRD# | Yamaha | |
| 57 | Thierry Espié FRA# | Chevallier Elf | Chevallier |
| 59 | Carlos Cardús ESP# | J.J. Moto Club | Kobas-Rotax |
* did not race full season
** selected races only
*** substitute rider
# Carter also raced number 28
# Lüscher also raced number 30
# Mattioli also raced number 58
# Fau also raced number 33
# Guilleux also raced numbers 47, 2 and 31
# Toffolo also raced number 37
# McLeod also raced number 39
# Weibel also raced number 50
# Eckl also raced number 35
# Espié also raced number 21
# Cardús also raced number 36
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