The 2015 Grand Prix Hassan II was a professional tennis tournament played on clay courts. It was the 31st edition of the tournament and part of the 2015 ATP World Tour. It took place in Casablanca, Morocco between 6 and 12 April 2015.[1]
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Spain | Guillermo García López | 25 | 1 | |
 Slovakia | Martin Kližan | 41 | 2 | |
 Czech Republic | Jiří Veselý | 48 | 3 | |
| Spain | Marcel Granollers | 50 | 4 | |
| Spain | Pablo Carreño Busta | 54 | 5 | |
 Austria | Andreas Haider-Maurer | 56 | 6 | |
 Kazakhstan | Mikhail Kukushkin | 57 | 7 | |
 Argentina | Diego Schwartzman | 61 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
Adrian Mannarino →replaced by Tobias Kamke Dominic Thiem →replaced by Dustin Brown| Country | Player | Country | Player | Rank1 | Seed | |
|---|---|---|---|---|---|---|
 India | Rohan Bopanna |  Romania | Florin Mergea | 44 | 1 | |
| Andre Begemann | Austria | Julian Knowle | 85 | 2 | ||
| Argentina | Máximo González | Robin Haase | 104 | 3 | ||
| Nicholas Monroe |  New Zealand | Artem Sitak | 117 | 4 |
The following pairs received wildcards into the doubles main draw:
See main article: 2015 Grand Prix Hassan II – Singles.
Martin Kližan defeated Daniel Gimeno Traver, 6–2, 6–2See main article: 2015 Grand Prix Hassan II – Doubles.
Rameez Junaid / 
Adil Shamasdin defeated Rohan Bopanna / Florin Mergea, 3–6, 6–2, [10–7]
