The 2003 Open de Moselle was a tennis tournament played on indoor hard courts at the Arènes de Metz in Metz in France and was part of the International Series of the 2003 ATP Tour. The tournament ran from September 29 through October 5, 2003.
Arnaud Clément defeated Fernando González 6–3, 1–6, 6–3
- It was Clément's only title of the year and the 4th of his career.
Julien Benneteau / Nicolas Mahut defeated Michaël Llodra / Fabrice Santoro 7–6(7–2), 6–3
- It was Benneteau's only title of the year and the 1st of his career. It was Mahut's only title of the year and the 1st of his career.