De 24 uur van Daytona 1973 was de 12e editie van deze endurancerace. De race werd verreden op 3 en 4 februari 1973 op de Daytona International Speedway nabij Daytona Beach, Florida.
De race werd gewonnen door de Brumos Porsche #59 van Peter Gregg en Hurley Haywood, die allebei hun eerste Daytona-zege behaalden. De GT+2.0-klasse werd gewonnen door de North American Racing Team #22 van François Migault en Milt Minter. De T5.0-klasse werd gewonnen door de Ray Kessler Inc. #9 van Ray Kessler, Ritchie Panch en Wilbur Pickett. De GT2.0-klasse werd gewonnen door de Bob Bergstrom #62 van Bob Bergstrom en Jim Cook. De T2.0-klasse werd gewonnen door de Andy Petery #84 van Andy Petery en Hans Ziereis. In de S2.0-klasse kwamen geen auto's aan de finish.
Race Winnaars in hun klasse zijn vetgedrukt.
Pos. Klasse No. Team Coureurs Chassis Ronden 1 S3.0 59 Brumos Porsche Peter Gregg Hurley Haywood Porsche 911 Carrera RSR 670 2 GT+2.0 22 North American Racing Team François Migault Milt Minter Ferrari 365 GTB/4 Competizione 648 3 GT+2.0 5 Dave Heinz Dave Heinz Bob McClure Chevrolet Corvette 644 4 GT+2.0 77 Silverstone Racing George Stone Bruce Jennings Mike Downs Porsche 911 S 638 5 GT+2.0 21 North American Racing Team Luigi Chinetti jr. Bob Grossman Wilbur Shaw jr. Ferrari 365 GTB/4 Competizione 632 6 GT+2.0 54 Porsche Kremer Racing John Fitzpatrick Erwin Kremer Paul Keller Porsche 911 S 630 7 T5.0 9 Ray Kessler Inc. Ray Kessler Ritchie Panch Wilbur Pickett Chevrolet Camaro Z28 592 8 GT+2.0 15 Toad Hall Motor Racing Michael Keyser Tony Adamowicz Bob Beasley Porsche 911 S 587 9 GT+2.0 56 Joest Racing Sepp Greger Kurt Hild Dieter Schmid Porsche 911 S 574 10 GT2.0 62 Bob Bergstrom Bob Bergstrom Jim Cook Porsche 911 S 571 11 GT+2.0 43 Dave Helmick Dave Helmick John O'Steen Stephen Behr Porsche 911 S 558 12 S3.0 19 Harry Bytzek Rudy Bartling Harry Bytzek Bert Kuehne Porsche 908/02 532 13 T5.0 30 Guido C. Levetto Guido Levetto Mario Levetto Ara Dube Chevrolet Camaro Z28 532 14 GT+2.0 51 Airport Motorsport Klaus Selbert W. Marvin Schoenfeld Bob Klempel Porsche 911 S 499 15 T5.0 80 Byron Cook Racing John Elliott Bill McDill Chevrolet Camaro Z28 488 16 T5.0 75 Don Winter Larry Bock Carl Shafer Gene Harrington Chevrolet Camaro Z28 451 17 T5.0 33 John McComb Dave Dooley John McComb Ford Mustang 437 18 T2.0 84 Andy Petery Andy Petery Hans Ziereis BMW 2002 313 19 GT2.0 38 Quintanilla/Muniz Daniel Muniz Roberto Quintanilla Porsche 914/6 215 DNF GT+2.0 49 John Greenwood Don Yenko Robert R. Johnson Chevrolet Corvette 494 DNF S3.0 6 Penske Racing Mark Donohue George Follmer Porsche 911 Carrera RSR 405 DNF GT+2.0 20 North American Racing Team Arturo Merzario Jean-Pierre Jarier Ferrari 365 GTB/4 Competizione 394 DNF GT+2.0 31 Locke Development Corporation Jim Locke Bob Bailey Porsche 911 S 387 DNF S3.0 2 Gulf Racing Mike Hailwood John Marshall Watson Mirage M6 366 DNF S2.0 10 Shierson Racing Bill Barber Charlie Kemp Chevron B19 337 DNF GT+2.0 23 North American Racing Team Claude Ballot-Léna Jean-Claude Andruet Ferrari 365 GTB/4 Competizione 284 DNF S3.0 12 Scuderia Filipinetti Reine Wisell Jean-Louis Lafosse Hughes de Fierlant Lola T282 281 DNF S3.0 3 Equipe Matra-Simca François Cevert Jean-Pierre Beltoise Henri Pescarolo Matra-Simca MS670 267 DNF S3.0 57 Reinhold Joest Reinhold Joest Mario Casoni Paul Blancpain Porsche 908/03 244 DNF S2.0 52 Promotion Advertising Hugh Kleinpeter Jim Gammon Tom Shelton Chevron B21 241 DNF T5.0 7 Eddie Johnson Clay Young Eddie Johnson Jim Fitzgerald Chevrolet Camaro Z28 233 DNF S2.0 93 Professional Racing Bob Fisher Tom Gloy Chevron B16 230 DNF GT+2.0 89 Holbert Porsche Mike Tillson Al Holbert Dieter Oest Porsche 911 S 213 DNF T5.0 96 U.S. Davis Racing Jose Rodriguez Reinaldo Almeida Chevrolet Camaro Z28 198 DNF GT+2.0 64 Weaver Chevrolet Bob Baechle Roger Pierce Alex Davidson Chevrolet Corvette 191 DNF S3.0 1 Gulf Racing Derek Bell Howden Ganley Mirage M6 179 DNF GT2.0 16 Toad Hall Motor Racing Peter Kirill Russ Norburn Bill Bean Porsche 911 S 175 DNF S2.0 88 Edwin G. Abate Ed Abate Bill Cuddy Porsche 910 167 DNF GT+2.0 58 Brumos Porsche Andrew Carduner Jacques Bienvenue Porsche 911 S 127 DNF T5.0 94 Bolus & Snopes Steve Ross Bob Mitchell Dave Houser Chevrolet Camaro Z28 120 DNF GT+2.0 11 Troy Promotions Inc. Tony DeLorenzo Maurice Carter Chevrolet Corvette 101 DNF GT+2.0 99 Diego Febles Horacio Alvarez Diego Febles Porsche 911 S 65 DNF GT+2.0 34 Murray Racing Jerry Thompson Ike Knupp Mike Murray Chevrolet Corvette 50 DNF T5.0 8 Automotive Engineering Enterprises Tom Nehl Steve Durst Chevrolet Camaro Z28 49 DNF GT+2.0 29 Jef Stevens Ralph Noseda Ray Mummery Chevrolet Camaro 38 DNF T5.0 14 C. C. Canada C. C. Canada Bob Christiansen John Tremblay Chevrolet Camaro Z28 29 DNF T5.0 17 Takondo Racing Vince Gimondo Billy Dingman Chevrolet Camaro Z28 15 DNF T5.0 55 Tiny Lund Tiny Lund Stephen Behr Jimmy Capps Pontiac Firebird 15 DNF S2.0 41 Parametrics Systems Raymond Gage Jim Grob Gary Ouellette Lotus 23 BMW 14 DNF T2.0 25 John Buffum Bert Everett John Buffum Wilbur Pickett Ford Escort RS1600 9 DNF GT+2.0 48 John Greenwood John Greenwood Ron Grable Chevrolet Corvette 7 DNF T5.0 47 Chitwood Racing Tim Chitwood Joie Chitwood Bob Nagel Chevrolet Camaro Z28 6 DNF T2.0 24 John Buffum Fred van Beuren jr. Guillermo Rojas Héctor Rebaque Ford Escort RS1600 0 DNS S3.0 T Gulf Racing Derek Bell Howden Ganley Mirage M6 Ford-Weslake 0 DNQ T5.0 27 Ernie Shaw Ernie Shaw Norm Mosher Al Straub Ford Mustang 0 DNQ GT2.0 73 Dale Kreider Dale Kreider Rick Silvers Paul Toppino Triumph GT6 0 DNQ GT+2.0 78 J. G. Racing Jacques Graham Gordon Johnson Datsun 240Z 0
1973 Daytona