| Gijón Open | |
| Logo Size: | 150px |
| Type: | defunct |
| City: | Gijón |
| Country: | Spain |
| Venue: | Palacio de Deportes de Gijón |
| Category: | ATP Tour 250 |
| Surface: | Hard – indoors |
| Draw: | 28 / 16 / 16 |
| Prize Money: | €612,000 (2022) |
| Website: | https://www.gijonopen.com/ |
| Completed Event: | 2022 |
| Men's Singles: | Andrey Rublev |
| Men's Doubles: |  Máximo González / Andrés Molteni |
The Gijón Open (known as the Watergen Gijón Open for sponsorship reasons) was an ATP 250 event held in November. The tournament was first held in October 2022 on a single-year license.[1] The tournament was set to return in 2024,[2] but was unexpectedly moved to Belgrade in August.[3]
| Year | Champion | Runner-up | Score |
|---|---|---|---|
| 2022 | Andrey Rublev |  Sebastian Korda | 6–2, 6–3 |
| 2023–24 | |||
| Year | Champions | Runners-up | Score |
|---|---|---|---|
| Máximo González Andrés Molteni | Nathaniel Lammons Jackson Withrow | 6–7(6–8), 7–6(7–4), [10–5] | |
| 2023–24 | |||