The 2002–03 UEFA Cup was the 32nd edition of the UEFA Cup, the second-tier European club football tournament organised by UEFA. The final was played between Portuguese side Porto and Scottish side Celtic at the Estadio Olímpico de Sevilla, Seville, on 21 May 2003. Porto won 3–2 after silver goal extra time and became the first Portuguese team to win the competition.

The 2003 UEFA Cup Final was played on 21 May 2003 between Celtic of Scotland and Porto of Portugal. Porto won the match 3–2 in extra time thanks to a goal from Derlei. This was also the first game to use the silver goal rule, although it did not affect the outcome of the game as Porto scored in the second half of extra-time, thus meaning the game had to be played until the end of extra-time.