| No |
Pilote |
Team |
Voiture |
| 1 | Jürgen Barth/Walter Röhrl | Porsche System Engineering | Porsche 944 LM |
| 2 | Louis Descartes/Hervé Bayard | Ecurie Renard-Delmas | Renard Delmas D31 |
| 4 | Denis Morin/Charles Mendez/Xavier Mathiot | W.M. Aerem | WM P79/80 Peugeot |
| 5 | Roger Dorchy/Guy Fréquelin/Xavier Mathiot | W.M. Aerem | WM P79/80 Peugeot |
| 7 | François Migault/Gordon Spice | Jean Rondeau | Rondeau M379C Ford |
| 8 | Jacky Haran/Philippe Streiff/Jean-Louis Schlesser | Jean Rondeau | Rondeau M379C Ford |
| 10 | Bob Wollek/Xavier Lapeyre/Guy Chasseuil | Porsche Kremer Racing | Porsche 917K/81 |
| 11 | Jacky Ickx/Derek Bell | Porsche System Engineering | Porsche 936/81 |
| 12 | Jochen Mass/Vern Schuppan/Hurley Haywood | Porsche System Engineering | Porsche 936/81 |
| 14 | Reinhold Jöest/Dale Whittington/Klaus Niedzwiedz | Joest Racing | Porsche 908/80 |
| 16 | Michel Lateste/Patrick Perrier/Jean-Louis Trintignant | Max Sardou | Ardex S80 BMW |
| 17 | Bobby Rahal/Brian Redman | Cooke-Woods Racing | Lola T600 Porsche |
| 18 | Emilio de Villota/Guy Edwards/Juan Fernandez | Grid Team Lola | Lola T600 Ford |
| 20 | Alain De Cadenet/Jean-Michel Martin/Phillippe Martin | Alain de Cadenet - Belga | De Cadenet Lola LM Ford |
| 21 | Vivian Candy/Martin Birrane/Nick Faure | Dorset Racing Associates | De Cadenet Lola LM |
| 22 | Patrick Gaillard/André Chevalley/Bruno Sotty | André Chevalley Racing | ACR 80B Ford |
| 23 | Chris Craft/Bob Evans | Dome Co Ltd. | Dome Zero RL81 Ford |
| 24 | Jean Rondeau/Jean-Pierre Jaussaud | Jean Rondeau | Rondeau M379C Ford |
| 25 | Jean Ragnotti/Jean-Louis Lafosse | Jean Rondeau | Rondeau M379C Ford |
| 26 | Henri Pescarolo/Patrick Tambay | Jean Rondeau | Rondeau M379C Ford |
| 27 | Tony Trimmer/Tiff Needell/Ian Bracey | Ian Bracey | IBEC P6 Ford |
| 30 | Max Cohen-Olivar/Jean-Marie Lemerle/Alain Levié | Jean-Marie Lemerle | Lola T298 BMW |
| 31 | Jean-Philippe Grand/Yves Courage | Jean-Philippe Grand | Lola T298 BMW |
| 33 | Pierre Yver/Jacques Heuclin/Michel Dubois | Compagnie Primagaz | Lola T298 BMW |
| 35 | Cale Yarborough/Bill Cooper/Billy Hagan | Stratagraph Inc. | Chevrolet Camaro |
| 36 | Manfred Schurti/Andy Rouse | Porsche System Engineering | Porsche 924 Carrera GTR |
| 37 | Tom Walkinshaw/Pete Lovett/Tetsu Ikuzawa | Mazda Auto Tokyo | Mazda RX-7 |
| 38 | Yojiro Terada/Win Percy/Hiroshi Fushida | Mazda Auto Tokyo | Mazda RX-7 |
| 40 | Mauricio DeNarvaez/Kenper Miller/Günter Steckkönig | Joest Racing | Porsche 935J |
| 41 | Preston Henn/Michael Chandler/Marcel Mignot | Preston Henn Racing | Porsche 935 K3 |
| 42 | Anny-Charlotte Verney/Ralph Kent-Cooke/Bob Garretson | Cooke - Woods Racing | Porsche 935 K3 |
| 43 | Paul Miller/Craig Sieber/Bob Akin | Bob Akin Motor Racing | Porsche 935 K3 |
| 45 | Fabrizio Violati/Diulio Truffo/Maurizio Flammini | Scuderia Supercar Bellancau | Ferrari 512 BB/LM |
| 46 | Jean Xhenceval/Pierre Dieudonné/Jean-Paul Libert | Rennod Racing | Ferrari 512 BB/LM |
| 47 | Jean-Claude Andruet/Claude Ballot-Léna | Charles Pozzi S.A. | Ferrari 512 BB/LM |
| 48 | Steve Earle/Simon Phillips/Mike Salmon | Simon Phillips | Ferrari 512 BB/LM |
| 49 | Alain Cudini/Philippe Gurdjian/John Morton | North American Racing Team | Ferrari 512 BB/LM |
| 50 | H-J Stuck/JP Jarier/Helmut Henzler | GS Tuning | BMW M1 (Sauber) |
| 51 | Bernard Darniche/Johnny Cecotto/Philippe Alliot | ORECA BMW Italia - France | BMW M1 |
| 52 | Dieter Quester/Marc Surer/David Deacon | Würth Team Sauber | BMW M1 (Sauber) |
| 53 | David Hobbs/Eddie Jordan/Steve O'Rourke | Emka Productions Ltd. | BMW M1 |
| 55 | John Cooper/Dudley Wood/Claude Bourgoignie | Claude Bourgoignie | Porsche 935 K3 |
| 57 | Claude Haldi/Hervé Poulain/Mark Thatcher | Claude Haldi | Porsche 935/77 |
| 59 | Ted Field/Bill Whittington/Don Whittington | Porsche Kremer Racing | Porsche 935 K3 |
| 60 | Dieter Schornstein/Harald Grohs/Götz von Tschirnhaus | Vegla Racing Team | Porsche 935J |
| 61 | Edgar Dören/Gerhard Holup/Jürgen Lässig | Weralit Racing Team | Porsche 935 K3 |
| 65 | Eddie Cheever/Michele Alboreto/Carlo Facetti | Martini Racing | Lancia Beta Montecarlo |
| 66 | Riccardo Patrese/Hans Heyer/Piercarlo Ghinzani | Martini Racing | Lancia Beta Montecarlo |
| 67 | Beppe Gabbiani/Emanuele Pirro/Riccardo Patrese | Martini Racing | Lancia Beta Montecarlo |
| 68 | Martino Finotto/Giorgio Schön/Giorgio Pianta | Jolly Club | Lancia Beta Montecarlo |
| 69 | Jan Lundgardh/Mike Wilds/Axel Plankenhorn | Tuff-Kote Dinol Racing | Porsche 935 |
| 70 | Valentin Bertapelle/Thierry Perrier/Bernard Salam | Thierry Perrier | Porsche 934 |
| 71 | Christian Danner/Leopold von Bayern/Peter Oberndorfer | Helmut Marko | BMW M1 |
| 72 | Pierre-François Rousselot/François Servanin/Laurent Ferrier | BMW Zol' Auto | BMW M1 |
| 73 | Jacques Alméras/Jean-Marie Alméras/Jean-Pierre Sivel | Eminence Racing Team | Porsche 924 Carrera GTR |
| 82 | Thierry Boutsen/Michel Pignard/Serge Saulnier | W.M. Aerem | WM P81 Peugeot |
| 83 | Max Mamers/Jean-Daniel Raulet/Michel Pignard | W.M. Aerem | WM P81 Peugeot |
24 Heures du Mans 1981