The 1991 430 km of Magny-Cours was the sixth round of the 1991 World Sportscar Championship season, taking place at Circuit de Nevers Magny-Cours, France. It took place on September 15, 1991.

Class leaders are in bold. The fastest time set by each entry is denoted in gray.

Pos.	Class	No.	Team	Qualifying 1	Qualifying 2	Gap	Grid
1	C1	6	Peugeot Talbot Sport	1:21.821	1:22.343		1
2	C1	5	Peugeot Talbot Sport	1:22.020	1:22.074	+0.199	2
3	C1	2	Team Sauber Mercedes	1:24.928	1:22.784	+0.963	3
4	C1	4	Silk Cut Jaguar	1:24.326	1:23.318	+1.497	4
5	C1	3	Silk Cut Jaguar	1:24.001	1:23.402	+1.581	5
6	C1	1	Team Sauber Mercedes	1:24.246	1:25.226	+2.425	6
7	C1	16	Repsol Brun Motorsport	1:28.028	1:27.722	+5.901	7
8	C1	8	Euro Racing	1:27.788	1:28.147	+5.967	8
9	C2	11	Porsche Kremer Racing	1:29.605	1:29.381	+7.560	11
10	C2	18	Mazdaspeed	1:30.384	1:30.424	+8.603	12
11	C2	55	Porsche Kremer Racing	1:31.103	1:30.454	+8.633	13
12	C1	61	Euro Racing	1:31.598	1:31.201	+9.380	9
13	C2	12	Courage Compétition	1:32.996	1:31.737	+9.916	14
14	C2	17	Repsol Brun Motorsport	1:31.987	1:35.236	+10.166	15
15	C1	21	Konrad Motorsport	1:41.433	1:33.589	+11.768	10
16	C2	13	Courage Compétition	1:35.405	1:33.744	+11.923	16
17	C1	60	Louis Descartes/ Racing Organisation Course	1:36.247	1:34.053	+12.232	17
18	C2	14	Team Salamin Primagaz	1:36.775	1:35.530	+13.709	18
19	C1	7	Louis Descartes	1:04:51.16	1:35.963	+14.142	19
20	C2	15	Veneto Equipe SR	1:42.993	1:42.473	+20.652	DNQ

Class winners in bold. Cars failing to complete 90% of the winner's distance marked as Not Classified (NC).

Pos	Class	No	Team	Drivers	Chassis	Tyre	Laps
					Engine
1	C1	6	Peugeot Talbot Sport	Keke Rosberg Yannick Dalmas	Peugeot 905 Evo 1B	M	101
					Peugeot SA35 3.5L V10
2	C1	5	Peugeot Talbot Sport	Mauro Baldi Philippe Alliot	Peugeot 905 Evo 1B	M	101
					Peugeot SA35 3.5L V10
3	C1	4	Silk Cut Jaguar	Teo Fabi David Brabham	Jaguar XJR-14	G	99
					Cosworth HB 3.5L V8
4	C1	8	Euro Racing	Cor Euser Charles Zwolsman	Spice SE90C	G	95
					Ford Cosworth DFR 3.5L V8
5	C1	3	Silk Cut Jaguar	Derek Warwick David Brabham	Jaguar XJR-14	G	94
					Cosworth HB 3.5L V8
6	C2	11	Porsche Kremer Racing	Manuel Reuter Harri Toivonen	Porsche 962CK6	Y	93
					Porsche Type-935 3.2L Turbo Flat-6
7	C2	18	Mazdaspeed	Maurizio Sandro Sala Pierre Dieudonné	Mazda 787	D	92
					Mazda R26B 2.6L 4-Rotor
8	C2	55	Porsche Kremer Racing	Tomas Lopez Gregor Foitek	Porsche 962CK6	Y	92
					Porsche Type-935 3.2L Turbo Flat-6
9	C2	13	Courage Compétition	Marco Brand Denis Morin	Cougar C26S	G	90
					Porsche Type-935 3.2L Turbo Flat-6
10	C2	14	Team Salamin Primagaz Obermaier Racing	Otto Altenbach Jürgen Lässig	Porsche 962C	G	90
					Porsche Type-935 3.2L Turbo Flat-6
11 NC	C1	7	Louis Descartes	Patrick Gonin Luigi Taverna	ALD C91	G	87
					Ford Cosworth DFR 3.5L V8
12 NC	C2	17	Repsol Brun Motorsport	Walter Brun Jesús Pareja	Porsche 962C	Y	73
					Porsche Type-935 3.2L Turbo Flat-6
13 DNF	C1	61	Euro Racing	Henri Pescarolo Jean-Louis Ricci	Spice SE90C	G	70
					Ford Cosworth DFR 3.5L V8
14 DNF	C1	2	Team Sauber Mercedes	Karl Wendlinger Michael Schumacher	Mercedes-Benz C291	G	23
					Mercedes-Benz M291 3.5L Flat-12
15 DNF	C2	12	Courage Compétition	Lionel Robert François Migault	Cougar C26S	G	19
					Porsche Type-935 3.2L Turbo Flat-6
16 DNF	C1	60	Louis Descartes Racing Organisation Course	Pascal Fabre Bernard Thuner	ROC 002	G	19
					Ford Cosworth DFR 3.5L V8
17 DNF	C1	21	Konrad Motorsport	Franz Konrad Stefan Johansson	Konrad KM-011	Y	18
					Lamborghini 3512 3.5L V12
18 DNF	C1	1	Team Sauber Mercedes	Jean-Louis Schlesser	Mercedes-Benz C291	G	9
					Mercedes-Benz M291 3.5L Flat-12
19 DNF	C1	16	Repsol Brun Motorsport	Oscar Larrauri Jesús Pareja	Brun C91	Y	5
					Judd EV 3.5L V8
DNQ	C2	15	Veneto Equipe SRL	Almo Coppelli	Lancia LC2	D	-
					Ferrari 308C 3.1L Turbo V8

• Pole Position - Yannick Dalmas (#6 Peugeot Talbot Sport) - 1:21.821
• Fastest Lap - Philippe Alliot (#5 Peugeot Talbot Sport) - 1:25.823
• Average Speed - 170.685 km/h

• WSPR-Racing - 1991 Magny-Cours results