The 2003 Dubai Tennis Championships and Dubai Duty Free Women's Open were tennis tournaments played on outdoor hard courts at the Aviation Club Tennis Centre in Dubai in the United Arab Emirates that were part of the International Series Gold of the 2003 ATP Tour and of Tier II of the 2003 WTA Tour.

The men's tournament was held from 24 February through 2 March 2003 while the women's tournament was held from 17 February through 22 February 2003.

Roger Federer and Justine Henin-Hardenne won the singles titles.

Roger Federer defeated Jiří Novák 6–1, 7–6(7–2) Justine Henin-Hardenne defeated Monica Seles 4–6, 7–6(7–4), 7–5 Leander Paes / David Rikl defeated Wayne Black / Kevin Ullyett 6–3, 6–0 Svetlana Kuznetsova / Martina Navratilova defeated Cara Black / Elena Likhovtseva 6–3, 7–6(9–7)