The 2003 Pennsylvania 500 was the 20th stock car race of the 2003 NASCAR Winston Cup Series season and the 31st iteration of the event.

The race was held on Sunday, July 27, 2003, before a crowd of 100,000 in Long Pond, Pennsylvania, at Pocono Raceway, a 2.5 miles (4.0 km) triangular permanent course.

[2] Ryan Newman of Penske Racing South would set the fastest time in the session, with a lap of 53.224 and an average speed of 169.097 miles per hour (272.135 km/h).

[2] Tony Stewart of Joe Gibbs Racing would set the fastest time in the session, with a lap of 54.251 and an average speed of 165.896 miles per hour (266.984 km/h).

[2] Ryan Newman of Penske Racing South would set the fastest time in the session, with a lap of 53.224 and an average speed of 169.097 miles per hour (272.135 km/h).

[6] Ryan Newman of Penske Racing South would win the pole, setting a time of 52.830 and an average speed of 170.358 miles per hour (274.165 km/h).