Gilles-Arnaud Bailly
| Country (sports) | Belgium |
|---|---|
| Born | 19 September 2005 Hasselt, Belgium |
| Height | 1.80 m (5 ft 11 in) |
| Plays | Right-handed (two-handed backhand) |
| Coach | Dries Beerden |
| Prize money | US $114,336 |
| Singles | |
| Career record | 1–3 (at ATP Tour level, Grand Slam level, and in Davis Cup) |
| Career titles | 0 |
| Highest ranking | No. 201 (10 November 2025) |
| Current ranking | No. 207 (12 January 2026) |
| Grand Slam singles results | |
| Australian Open | Q3 (2026) |
| Doubles | |
| Career record | 0–0 (at ATP Tour level, Grand Slam level, and in Davis Cup) |
| Career titles | 0 |
| Highest ranking | No. 1,723 (27 February 2023) |
| Current ranking | No. 2,086 (12 January 2026) |
| Last updated on: 12 January 2026. | |
Gilles-Arnaud Bailly (born 19 September 2005) is a Belgian professional tennis player. He has a career-high ATP singles ranking of No. 201, achieved on 10 November 2025 and a doubles ranking of No. 1,723 reached on 27 February 2023.