2003 Arab Unified Club Championship, officially named the 2003 Prince Faisal bin Fahd Tournament for Arab Clubs, was the 19th UAFA Club Cup, and the 2nd since the Arab Club Champions Cup and Arab Cup Winners' Cup were unified. The tournament began on 6 July and concluded on 20 July 2003, the matches took place in Cairo Stadium in Cairo, Egypt, Zamalek won the tournament and earning their first UAFA Club Cup title.

The ten teams were drawn into two groups of five. Each group was played on one leg basis. The winners and runners-up of each group advanced to the semi-finals.