| Grand Prix Hassan II | |
| Logo Size: | 75px |
| City: | Casablanca (1984–2015) Marrakesh (2016–present) |
| Country: | Morocco |
| Founded: | 1984 |
| Venue: | Complexe Al Amal (1984-2015) Royal Tennis Club de Marrakech (2016-present) |
| Category: | ATP Tour 250 series / ATP International Series / ATP World Series / (1990–current) Challenger Series (1986–1989) |
| Surface: | Clay / outdoors |
| Draw: | 32S / 16D |
| Prize Money: | €562,815 (2024) |
| Website: | Official website on ATP site |
| Completed Event: | 2024 |
| Singles: |  Matteo Berrettini |
| Doubles: |  Marcelo Demoliner Andrea Vavassori |
The Grand Prix Hassan II is an annual men's tennis tournament on the ATP Tour and is currently part of the ATP Tour 250 series. The event is played on clay courts and was held annually at the Complexe Al Amal in Casablanca, Morocco through 2015, before relocating to Marrakesh in 2016. Between 1984 and 1989 it was part of the Challenger Series. It is currently the only ATP event held in Africa. The tournament is usually held in April though it has been held in March before and is a lead up tournament for the French Open.
| ATP Tour | |
| Challenger |
| Location | Year | Champion | Runners-up | Score |
|---|---|---|---|---|
| Marrakesh | 2024 | Matteo Berrettini |  Roberto Carballés Baena | 7–5, 6–2 |
| 4–6, 7–6(7–3), 6–2[1] | ||||
| 3–6, 6–3, 6–3[2] | ||||
| 2021–2020 | Cancelled due to the COVID-19 pandemic.[3] | |||
| 6–2, 6–3 | ||||
| 6–2, 6–2 | ||||
| 5–7, 7–6(7–3), 7–5 | ||||
| 6–2, 6–4 | ||||
| Casablanca | 6–2, 6–2 | |||
| 5–7, 6–4, 6–3 | ||||
| 7–6(8–6), 4–6, 6–3 | ||||
| 6–1, 7–6(7–5) | ||||
| 6–1, 6–2 | ||||
| 6–2, 6–3 | ||||
| 6–4, 7–5 | ||||
| 7–5, 6–2 | ||||
| 6–1, 6–1 | ||||
| 6–1, 6–4 | ||||
| 6–4, 6–1 | ||||
| 6–3, 1–6, 6–4 | ||||
| 6–2, 2–6, 6–1 | ||||
| 3–6, 6–3, 6–2 | ||||
| 7–5, 6–2 | ||||
| 6–4, 4–6, 7–6 | ||||
| 6–3, 6–4 | ||||
| 6–4, 5–7, 6–4 | ||||
| 3–6, 6–1, 6–2 | ||||
| 7–5, 1–6, 6–2 | ||||
| 6–4, 6–2 | ||||
| 6–2, 6–2 | ||||
| 6–4, 6–3 | ||||
| 2–6, 7–5, 6–3 | ||||
| 1991 | Not held | |||
| 6–1, 6–7, 6–2 | ||||
| Andres Võsand[4] | 3-6, 7–6, 6–0 | |||
 Franco Davín[5] | 6–3, 2-6, 6–4 | |||
 Tarik Benhabiles[6] | 6-2, 7-5 | |||
| 1986 | David De Miguel[7] | Thierry Champion | 6–2, 6–3 | |
 Ronald Agenor[8] | 2-6, 6-3, 6-4 | |||
| 1984[9] | Hans Gildemeister[10] | Blaine Willenborg | 6–7, 6–2, 6-1 |
| Location | Year | Champion | Runners-up | Score |
|---|---|---|---|---|
| Marrakesh | ||||
 Harri Heliövaara  Henry Patten |  Alexander Erler Lucas Miedler | 3–6, 6–4, [10–4] | ||
| 6–4, 3–6, [12–10] | ||||
| 6–1, 7–5 | ||||
| 2021-2020 | Cancelled due to the COVID-19 pandemic.[11] | |||
| 6–4, 7–6(8–6) | ||||
| 7–5, 3–6, [10–7] | ||||
| 6–4, 2–6, [11–9] | ||||
| 6–2, 3–6, [10–6] | ||||
| Casablanca | 3–6, 6–2, [10–7] | |||
| 6–2, 6–2 | ||||
| 6–3, 6–2 | ||||
| 7–5, 6–3 | ||||
| 6–2, 6–1 | ||||
| 6–2, 3–6, [10–7] | ||||
| 7–6 (7–4), 3–6, [10–6] | ||||
| 6–1, 6–2 | ||||
| 7–6, 1–6, [10–4] | ||||
| 6–3, 6–4 | ||||
| 6–4, 6–3 | ||||
| 3–6, 6–0, 6–4 | ||||
| 6–3, 7–5 | ||||
| 6–4, 6–2 | ||||
| 7–6, 6–3 | ||||
| 7–6, 6–4 | ||||
| 6–2, 6–3 | ||||
| 6–4, 7–6 | ||||
| 7–6, 6–2 | ||||
| 7–6, 6–3 | ||||
| 6–4, 6–1 | ||||
| 6–3, 6–4 | ||||
| 7–5, 7–6 | ||||
| 2–6, 6–4, 7–6 | ||||
| 1991 | Not held | |||
| 6–3, 6–1 | ||||
| 1989 | 6–1, 6–3 | |||
| 1988 | 6–2, 6–0 | |||
| 1987 | 7–6, 6–2 | |||
| 1986 | 7–5, 6–2 |