2003 Open Gaz de France – Singles

Venus Williams was the defending champion but did not compete that year.

Serena Williams won in the final 6–3, 6–2 against Amélie Mauresmo.

Seeds
A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated. The top four seeds received a bye to the second round.


 * 1) 🇺🇸 Serena Williams (champion)
 * 2) 🇸🇰 Daniela Hantuchová (quarterfinals)
 * 3) 🇫🇷 Amélie Mauresmo (final)
 * 4)  Jelena Dokić (quarterfinals)
 * 5)  Patty Schnyder (first round)
 * 6) 🇮🇹 Silvia Farina Elia (first round)
 * 7) 🇮🇱 Anna Pistolesi (first round)
 * 8)  Eleni Daniilidou (semifinals)