The 2003 Open SEAT Godó was a men's tennis tournament played on outdoor clay courts at the Real Club de Tenis Barcelona in Barcelona, Spain and was part of the International Series Gold of the 2003 ATP Tour. It was the 51st edition of the tournament and ran from April 21 through April 27, 2003. Carlos Moyá won the singles title.
Carlos Moyá defeated Marat Safin 5–7, 6–2, 6–2, 3–0 (Safin retired)
- It was Moyá's 2nd title of the year and the 13th of his career.
Bob Bryan / Mike Bryan defeated Chris Haggard / Robbie Koenig 6–4, 6–3
- It was Bob Bryan's 1st title of the year and the 10th of his career. It was Mike Bryan's 1st title of the year and the 12th of his career.