The 2012 Tunis Open was a professional tennis tournament played on clay courts. It was the seventh edition of the tournament which was part of the 2012 ATP Challenger Tour and the Tretorn SERIE+ tour. It took place in Tunis, Tunisia between April 30 and May 6, 2012.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Spain | Marcel Granollers | 26 | 1 | |
 France | Jérémy Chardy | 59 | 2 | |
 Tunisia | Malek Jaziri | 87 | 3 | |
| Spain | Rubén Ramírez Hidalgo | 99 | 4 | |
 Argentina | Horacio Zeballos | 115 | 5 | |
 Estonia | Jürgen Zopp | 125 | 6 | |
 Italy | Alessandro Giannessi | 128 | 7 | |
 Turkey | Marsel İlhan | 129 | 8 |
The following players received wildcards into the singles main draw:
Haithem Abid Marcel Granollers Skander MansouriThe following players received entry as a special exempt into the singles main draw:
The following players received entry from the qualifying draw:
Antonio Comporto Riccardo Ghedin Gianluca Naso Laurent RochetteSee main article: 2012 Tunis Open – Singles.
Rubén Ramírez Hidalgo def. Jérémy Chardy, 6–1, 6–4See main article: 2012 Tunis Open – Doubles.
Jerzy Janowicz / Jürgen Zopp def. 
Nicholas Monroe / Simon Stadler, 7–6(7–1), 6–3