Guy den Ouden
| Country (sports) | Netherlands |
|---|---|
| Born | 8 April 2002 Maarssen, Netherlands |
| Height | 1.83 m (6 ft 0 in) |
| Plays | Right-handed, (two-handed backhand) |
| College | Pepperdine University |
| Coach | Marcel Vos |
| Prize money | US $247,675 |
| Singles | |
| Career record | 0–0 |
| Career titles | 0 |
| Highest ranking | No. 147 (8 September 2025) |
| Current ranking | No. 160 (15 September 2025) |
| Grand Slam singles results | |
| Australian Open | Q1 (2026) |
| French Open | Q1 (2025) |
| Wimbledon | Q1 (2025) |
| US Open | Q1 (2025) |
| Doubles | |
| Career record | 0–0 |
| Career titles | 0 |
| Highest ranking | No. 540 (2 May 2022) |
| Current ranking | No. 1632 (28 July 2025) |
| Last updated on: 28 September 2025. | |
Guy den Ouden (born 8 April 2002) is a Dutch professional tennis player. He has a career-high singles ranking of world No. 147, achieved on 8 September 2025. He is currently the No. 4 player from the Netherlands.
In 2020 and 2021, den Ouden attended Pepperdine University in California.