The 1989 Grand Prix de Tennis de Lyon was a men's tennis tournament played on indoor carpet courts at the Palais des Sports de Gerland in Lyon, France, and was part of the 1989 Nabisco Grand Prix. It was the third edition of the tournament and was held from 20 February through 27 February 1989. Second-seeded John McEnroe won the singles title.
Finals
Singles
John McEnroe defeated Jakob Hlasek 6–3, 7–6
It was McEnroe's 2nd title of the year and the 138th of his career.
Doubles
Eric Jelen / Michael Mortensen defeated Jakob Hlasek / John McEnroe 6–2, 3–6, 6–3 It was Jelen's 1st title of the year and the 3rd of his career. It was Mortensen's only title of the year and the 5th of his career.