| Date: | March 19 – March 25 |
| Edition: | 6th |
| Category: | ATP Challenger Tour |
| Surface: | Hard (indoor) |
| Location: | Rimouski, Canada |
| Venue: | Tennis de Rimouski |
| Champs: |  Vasek Pospisil |
| Champd: |  Tomasz Bednarek /  Olivier Charroin |
| Main Name: | Challenger de Rimouski |
The 2012 Challenger Banque Nationale de Rimouski was a professional tennis tournament played on indoor hard courts. It was the 6th edition of the tournament and part of the 2012 ATP Challenger Tour, offering a total of $35,000 in prize money. It took place in Rimouski, Canada between March 19 and March 25, 2012.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Japan | Tatsuma Ito | 105 | 1 | |
| Canada | Vasek Pospisil | 114 | 2 | |
| Izak van der Merwe | 132 | 3 | ||
| Dominik Meffert | 204 | 4 | ||
| Denis Gremelmayr | 207 | 5 | ||
 Belgium | Maxime Authom | 212 | 6 | |
| Peter Gojowczyk | 215 | 7 | ||
| Stéphane Bohli | 221 | 8 |
The following players received wildcards into the singles main draw:
Philip Bester Samuel Monette Filip Peliwo Milan PokrajacThe following players received entry from the qualifying draw:
See main article: 2012 Challenger Banque Nationale de Rimouski – Singles.
Vasek Pospisil def. Maxime Authom, 7–6(8–6), 6–4See main article: 2012 Challenger Banque Nationale de Rimouski – Doubles.
Tomasz Bednarek / Olivier Charroin def. Jaan-Frederik Brunken / Stefan Seifert, 6–3, 6–2