Davide Sanguinetti was the defending champion but did not compete that year.
Jan-Michael Gambill won in the final 6–0, 7–6(7–5) against Mardy Fish.
Seeds
Andy Roddick (first round, retired) Guillermo Coria (first round) Marcelo Ríos (semifinals) Jan-Michael Gambill (champion) Arnaud Clément (first round) Raemon Sluiter (first round) Stefan Koubek (first round) Vince Spadea (second round)
Draw
Finals
Top half
Bottom half
References 2003 Delray Beach International Tennis Championships draw 2003 Delray Beach International Tennis Championships Qualifying draw