| Date: | 12–18 November |
| Edition: | 1st |
| Surface: | Clay |
| Location: | Marbella, Spain |
| Champs: |  Albert Montañés |
| Champd: |  Andrey Kuznetsov / Javier Martí |
| After Year: | no |
The 2012 I Marbella Open 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 Marbella, Spain between 12 and 18 November 2012.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| Spain | Daniel Gimeno Traver | 70 | 1 | |
| Russian Federation | Andrey Kuznetsov | 75 | 2 | |
| Spain | Rubén Ramírez Hidalgo | 96 | 3 | |
 Slovenia | Blaž Kavčič | 99 | 4 | |
 Romania | Adrian Ungur | 111 | 5 | |
| Spain | Albert Montañés | 118 | 6 | |
| Antonio Veić | 144 | 7 | ||
| Spain | Íñigo Cervantes Huegun | 148 | 8 |
The following players received wildcards into the singles main draw:
Manuel de Luis
Marko Djokovic Carlos Gómez-Herrera Mario VilellaThe following players received entry from the qualifying draw:
See main article: 2012 I Marbella Open – Singles.
Albert Montañés def. Daniel Muñoz de la Nava, 3–6, 6–2, 6–3See main article: 2012 I Marbella Open – Doubles.
Andrey Kuznetsov / Javier Martí def. Emilio Benfele Álvarez / 
Adelchi Virgili, 6–3, 6–3