2004 Family Circle Cup – Singles

Venus Williams defeated Conchita Martínez in the final, 2–6, 6–2, 6–1 to win the singles tennis title at the 2004 Family Circle Cup. It was Williams' 30th career title.

Justine Henin-Hardenne was the reigning champion, but did not compete this year due to hypoglycemia.

Seeds
The first nine seeds received a bye into the second round. • # 🇧🇪 Justine Henin-Hardenne (withdrew due to a hypoglycemia)

• # 🇺🇸 Serena Williams (third round, withdrew due to a left knee inflammation)

• # 🇫🇷 Amélie Mauresmo (withdrew due to a right lower back strain)

• # 🇺🇸 Venus Williams (champion)

• # 🇺🇸 Lindsay Davenport (quarterfinals)

• # 🇷🇺 Elena Dementieva (third round)

• # 🇺🇸 Jennifer Capriati (third round)

• # 🇷🇺 Nadia Petrova (quarterfinals)

• # 🇷🇺 Vera Zvonareva (quarterfinals)

• # 🇦🇷 Paola Suárez (second round)

• # Patty Schnyder (semifinals)

• # Jelena Dokic (second round)

• # 🇮🇱 Anna Smashnova-Pistolesi (third round)

• # 🇨🇴 Fabiola Zuluaga (first round)

• # 🇫🇷 Nathalie Dechy (first round)

• # 🇪🇸 Conchita Martínez (final)

• # Eleni Daniilidou (first round)