| Date: | 29 October – 4 November |
| Edition: | 25th |
| Surface: | Hard |
| Location: | Geneva, Switzerland |
| Champs: |  Marc Gicquel |
| Champd: |  Johan Brunström / Raven Klaasen |
| Before Name: | IPP Trophy |
| After Name: | Geneva Open Challenger |
| Before Year: | 2011 |
| After Year: | 2013 |
The 2012 Geneva Open Challenger was a professional tennis tournament played on hard courts. It was the 25th edition of the tournament which was part of the 2012 ATP Challenger Tour. It took place in Geneva, Switzerland between October 29 and November 4, 2012.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| Tobias Kamke | 80 | 1 | ||
 Czech Republic | Lukáš Rosol | 81 | 2 | |
 Slovenia | Aljaž Bedene | 84 | 3 | |
| Björn Phau | 85 | 4 | ||
 Tunisia | Malek Jaziri | 89 | 5 | |
 Israel | Dudi Sela | 95 | 6 | |
 Belgium | Olivier Rochus | 104 | 7 | |
 Canada | Vasek Pospisil | 109 | 8 |
The following players received wildcards into the singles main draw:
Alexander RumyantsevThe following players received entry from the qualifying draw:
Grégoire Burquier Jonathan Eysseric
Sergiy StakhovskySee main article: 2012 Geneva Open Challenger – Singles.
Marc Gicquel def. Matthias Bachinger, 3–6, 6–3, 6–4See main article: 2012 Geneva Open Challenger – Doubles.
Johan Brunström / Raven Klaasen def. Philipp Marx / 
Florin Mergea, 7–6(7–2), 6–7(5–7), [10–5]