The 1978 Formula 750 season was the sixth season of the FIM Formula 750 World Championship and the second season to have full world championship status. Despite Kenny Roberts being the racer with most wins on aggregate, Johnny Cecotto was crowned champion after finishing seven races among the top three.

Pos Rider Bike IMO PAU BRA OST JAR HOC NIV ASS LAG MOS Pts 1 Johnny Cecotto Yamaha 1 1 2 2 2 1 3 5 97 2 King Kenny Roberts Yamaha 2 1 1 1 4 1 2 92 3 Christian Sarron Yamaha 3 5 5 3 1 4 55 4 Gianfranco Bonera Yamaha 3 5 2 3 1 53 5 Patrick Pons Yamaha 6 5 3 4 5 6 40 6 Steve Baker Yamaha 2 3 7 2 38 7 Mike Baldwin Yamaha 3 1 25 8 Christian Estrosi Yamaha 6 7 4 4 25 9 Boet van Dulmen Yamaha 7 8 10 6 7 6 22 10 Hubert Rigal Yamaha 4 6 8 7 20 11 Gregg Hansford Kawasaki 4 3 18 12 Hervé Moineau Yamaha 10 2 13 13 Takazumi Katayama Yamaha 2 12 14 Sadao Asami Yamaha 5 7 9 12 15 Yvon Duhamel Kawasaki 3 10 16 Michel Frutschi Yamaha 5 8 9 17 Ikujirō Takaī Yamaha 4 8 = Gene Romero Yamaha 4 8 = Skip Aksland Yamaha 4 8 20 Dave Potter Yamaha 10 5 7 21 Warren Willing Yamaha 8 7 7 22 Wes Cooley Yamaha 5 6 23 Jeffrey Sayle Yamaha 6 10 6 24 John Long Yamaha 10 6 6 25 Greg Johnson Yamaha 8 8 6 26 Jean-François Baldé Yamaha 6 5 = Dave Aldana Yamaha 6 5 28 Markku Matikainen Yamaha 9 8 5 29 Steve Parrish Yamaha 7 4 = Randy Mamola Yamaha 7 4 = Steve Gervais Yamaha 7 4 32 Bernard Fau Kawasaki 9 9 4 = Jean-Paul Boinet Yamaha 9 9 4 34 John Newbold Yamaha 8 3 = Steve McLaughlin Yamaha 8 3 = Gary Collins Yamaha 8 3 37 Jack Middelburg Yamaha 9 2 = Philippe Coulon Yamaha 9 2 = Ron Pierce Yamaha 9 2 = John Clark Yamaha 9 2 41 Dale Singleton Yamaha 10 1 = Michel Rougerie Yamaha 10 1 = Víctor Palomo Yamaha 10 1 = Barry Ditchburn Yamaha 10 1 = Martin Hall Yamaha 10 1 Pos Rider Bike IMO PAU BRA OST JAR HOC NIV ASS LAG MOS Pts

Colour Result Gold Winner Silver Second place Bronze Third place Green Points finish Blue Non-points finish Non-classified finish (NC) Purple Retired (Ret) Red Did not qualify (DNQ) Did not pre-qualify (DNPQ) Black Disqualified (DSQ) White Did not start (DNS) Withdrew (WD) Race cancelled (C) Blank Did not practice (DNP) Did not arrive (DNA) Excluded (EX)

"MOTO-FORMULE 750 1978 Res Comp" (in French).

• 1978 Grand Prix motorcycle racing season