Jonas Svensson was the defending champion but did not compete that year.
Guy Forget won in the final 6–3, 7–6 against
Michiel Schapers.
Seeds
A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.
Draw
External links
1989 Lorraine Open Draw
{{DEFAULTSORT:Singles
1989 Grand Prix (tennis)