The 1990 Grand Prix de Tennis de Lyon was a tennis tournament played on indoor carpet courts at the Palais des Sports de Gerland in Lyon in France and was part of the World Series of the 1990 ATP Tour. The tournament ran from October 15 through October 22, 1990.
Marc Rosset defeated Mats Wilander 6–3, 6–2
- It was Rosset's only title of the year and the 2nd of his career.
Patrick Galbraith / Kelly Jones defeated Jim Grabb / David Pate 7–6, 6–4
- It was Galbraith's 2nd title of the year and the 3rd of his career. It was Jones' 4th title of the year and the 7th of his career.