The 2012 Mersin Cup was a professional tennis tournament played on clay courts. It was the first edition of the tournament which was part of the 2012 ATP Challenger Tour. It took place in Mersin, Turkey between 9 and 15 April 2012.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Slovakia | Martin Kližan | 94 | 1 | |
 Turkey | Marsel İlhan | 122 | 2 | |
| Igor Sijsling | 124 | 3 | ||
| Daniel Brands | 130 | 4 | ||
| Thomas Schoorel | 132 | 5 | ||
 Czech Republic | Jan Hájek | 151 | 6 | |
| João Sousa | 171 | 7 | ||
 Spain | Javier Martí | 177 | 8 |
The following players received wildcards into the singles main draw:
Can Altiner Haluk Akkoyun Barkin Yalcinkale Ergün ZorluThe following players received entry from the qualifying draw:
Jérôme Inzerillo
Gabriel Moraru
Ivan Nedelko Michal SchmidThe following players received entry from the qualifying draw as a lucky loser:
Ľubomír MajšajdrSee main article: 2012 Mersin Cup – Singles.
Javier Martí, 6–4, 0–6, 6–4See main article: 2012 Mersin Cup – Doubles.
Radu Albot / 
Denys Molchanov def. 
Alessandro Motti / Simone Vagnozzi, 6–0, 6–2