| Men's Singles | |
|---|---|
| 1989 French Open | |
| Champion |
|
| Runner-up |
|
| Final score | 6–1, 3–6, 4–6, 6–4, 6–2 |
Mats Wilander was the defending champion, but he was upset in the quarterfinals by Andrei Chesnokov.
17-year-old Michael Chang won the title, and as such broke the record for the youngest-ever Grand Slam – Men's Singles champion. Among his victories was a defeat of World No. 1 and three-time French Open champion Ivan Lendl, which is remembered as one of the most significant matches in French Open history.