The2003 FIA GT Barcelona 500 km was the opening round the2003 FIA GT Championship. It took place at theCircuit de Catalunya,Spain, on 6 April 2003.

Class winners inbold. Cars failing to complete 70% of winner's distance marked as Not Classified (NC).

Pos	Class	No	Team	Drivers	Chassis	Tyre	Laps
					Engine
1	GT	23	BMS Scuderia Italia	Matteo Bobbi Thomas Biagi	Ferrari 550-GTS Maranello	M	96
					Ferrari 5.9L V12
2	GT	22	BMS Scuderia Italia	Fabrizio Gollin Luca Cappellari	Ferrari 550-GTS Maranello	M	96
					Ferrari 5.9L V12
3	GT	21	Care Racing BMS Scuderia Italia	Stefano Livio Lilian Bryner Enzo Calderari	Ferrari 550-GTS Maranello	M	95
					Ferrari 5.9L V12
4	GT	15	Lister Storm Racing	Andrea Piccini Jean-Denis Délétraz	Lister Storm	D	95
					Jaguar 7.0L V12
5	GT	6	Creation Autosportif	Bobby Verdon-Roe Peter Snowdon	Lister Storm	D	95
					Jaguar 7.0L V12
6	GT	11	RoosOptima Racing Team	Henrik Roos Magnus Wallinder	Chrysler Viper GTS-R	D	94
					Chrysler 8.0L V10
7	GT	18	Zwaan's Racing	Arjan van der Zwaan Rob van der Zwaan Klaus Abbelen	Chrysler Viper GTS-R	D	93
					Chrysler 8.0L V10
8	N-GT	52	JMB Racing	Andrea Bertolini Fabrizio de Simone	Ferrari 360 Modena GT	P	93
					Ferrari 3.6L V8
9	N-GT	88	Team Maranello Concessionaires	Tim Mullen Jamie Davies	Ferrari 360 Modena GT	D	92
					Ferrari 3.6L V8
10	N-GT	89	Team Maranello Concessionaires	Darren Turner Kelvin Burt	Ferrari 360 Modena N-GT	D	92
					Ferrari 3.6L V8
11	GT	2	Konrad Motorsport	Franz Konrad Toni Seiler	Saleen S7-R	D	92
					Ford 7.0L V8
12	N-GT	58	Auto Palace Compétition	Steeve Hiesse Guillaume Gomez	Ferrari 360 Modena GT	P	92
					Ferrari 3.6L V8
13	N-GT	99	RWSYukos Motorsport	Walter Lechner, Jr. Stéphane Daoudi	Porsche 911 GT3-R	P	92
					Porsche 3.6L Flat-6
14	N-GT	57	MenX	Tomáš Enge Robert Pergl	Ferrari 360 Modena GT	D	91
					Ferrari 3.6L V8
15	GT	7	Graham Nash Motorsport	Mike Newton Thomas Erdos	Saleen S7-R	D	91
					Ford 7.0L V8
16	N-GT	77	RWSYukos Motorsport	Nikolai Fomenko Alexey Vasilyev	Porsche 911 GT3-RS	P	90
					Porsche 3.6L Flat-6
17	N-GT	54	Cirtek Motorsport	Mark Mayall Marco Zadra	Porsche 911 GT3-R	D	90
					Porsche 3.6L Flat-6
18	N-GT	74	Team Eurotech	Mike Jordan Mark Sumpter	Porsche 911 GT3-RS	D	90
					Porsche 3.6L Flat-6
19	GT	12	Proton Competition	Christian Ried Gerold Ried	Porsche 911 GT2	Y	90
					Porsche 3.6L Turbo Flat-6
20	N-GT	53	JMB Racing	Antoine Gosse Peter Kutemann	Ferrari 360 Modena N-GT	P	89
					Ferrari 3.6L V8
21	N-GT	56	Alda Motorsport	Andrzej Dziurka Wojciech Dobrzanski	Porsche 911 GT3-RS	D	88
					Porsche 3.6L Flat-6
22	N-GT	64	AB Motorsport	Renato Premoli Bruno Barbaro Antonio De Castro	Porsche 911 GT3-RS	P	87
					Porsche 3.6L Flat-6
23	N-GT	62	G-Tec	Richard Kaye Rustem Teregulov	Porsche 911 GT3-R	D	86
					Porsche 3.6L Flat-6
24	N-GT	63	Motor Competición	Luis Villalba Francesc Gutiérrez	Porsche 911 GT3-RS	D	76
					Porsche 3.6L Flat-6
25 DNF	GT	8	Graham Nash Motorsport	Miguel Ramos Ni Amorim Pedro Chaves	Saleen S7-R	D	64
					Ford 7.0L V8
26 DNF	GT	1	Larbre Compétition	Christophe Bouchut Jean-Philippe Belloc	Chrysler Viper GTS-R	M	55
					Chrysler 8.0L V10
27 DNF	N-GT	50	Freisinger Motorsport	Marc Lieb Sascha Maassen	Porsche 911 GT3-RS	D	52
					Porsche 3.6L Flat-6
28 DNF	N-GT	51	Freisinger Motorsport	Bert Longin Gabriele Gardel	Porsche 911 GT3-RS	D	48
					Porsche 3.6L Flat-6
29 DNF	GT	16	Wieth Racing	Wolfgang Kaufmann Niko Wieth Vittorio Zoboli	Ferrari 550 Maranello	D	47
					Ferrari 6.0L V12
30 DNF	GT	14	Lister Storm Racing	Jamie Campbell-Walter Nathan Kinch	Lister Storm	D	44
					Jaguar 7.0L V12
31 DNF	GT	9	JMB Racing	Philipp Peter Fabio Babini	Ferrari 550 Maranello	P	40
					Ferrari 6.0L V12
32 DNF	GT	4	Force One RacingFestina	Philippe Alliot David Hallyday Steve Zacchia	Chrysler Viper GTS-R	P	36
					Chrysler 8.0L V10
33 DNF	GT	5	Force One RacingFestina Carsport Holland	Mike Hezemans Anthony Kumpen	Chrysler Viper GTS-R	P	25
					Chrysler 8.0L V10
34 DNF	N-GT	55	Cirtek Motorsport	Ian Khan Adam Jones	Porsche 911 GT3-R	D	19
					Porsche 3.6L Flat-6
35 DNF	N-GT	61	EMKA Racing	Martin Short Tim Sugden	Porsche 911 GT3-R	D	11
					Porsche 3.6L Flat-6
DNS	GT	10	JMB Racing	Boris Derichebourg David Terrien Christian Pescatori	Ferrari 550 Maranello	P	–
					Ferrari 6.0L V12
DNS	N-GT	75	Team Eurotech	David Jones Godfrey Jones	Porsche 911 GT3-R	D	–
					Porsche 3.6L Flat-6

• Pole position – #14 Lister Storm Racing – 1:40.975
• Fastest lap – #1 Larbre Compétition – 1:45.081
• Average speed – 150.790 km/h

• 2003 in FIA GT
• 2003 in Spanish motorsport