| Champ: |  Alexei Popyrin |
| Runner: |  Nicola Kuhn |
| Score: | 7–6(7–5), 6–3 |
| Before Name: | French Open – Boys' singles |
See main article: 2017 French Open.
Alexei Popyrin won the title, defeating Nicola Kuhn in the final, 7–6(7–5), 6–3.
Geoffrey Blancaneaux was the defending champion, but was no longer eligible to participate in junior events. He received a wildcard into the men's singles qualifying competition, where he lost to fellow wildcard Maxime Janvier in the first round.