The 2003 MasterCard German Open was a women's tennis event that was played in Berlin, Germany from 5 May to 11 May 2003. It was one of two Tier I events that took place on red clay in the build-up to the second Grand Slam of the year, the French Open. Third-seeded Justine Henin-Hardenne won the singles title and earned $182,000 first-prize money.