| Date: | 22–28 October |
| Edition: | 3rd |
| Surface: | Clay |
| Location: | Buenos Aires, Argentina |
| Champs: |  Diego Sebastián Schwartzman |
| Champd: | Martín Alund / Horacio Zeballos |
The 2012 Copa Topper was a professional tennis tournament played on clay courts. It was the third edition of the tournament which was part of the 2012 ATP Challenger Tour. It took place in Buenos Aires, Argentina between 22 and 28 October 2012.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| Argentina | Leonardo Mayer | 78 | 1 | |
 Slovenia | Blaž Kavčič | 106 | 2 | |
| Argentina | Martín Alund | 121 | 3 | |
 France | Guillaume Rufin | 124 | 4 | |
| Argentina | Horacio Zeballos | 125 | 5 | |
 Brazil | Rogério Dutra da Silva | 131 | 6 | |
| Frederico Gil | 138 | 7 | ||
| Argentina | Guido Andreozzi | 184 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
See main article: 2012 Copa Topper – Singles.
Diego Schwartzman def. Guillaume Rufin, 6–1, 7–5See main article: 2012 Copa Topper – Doubles.
Martín Alund / Horacio Zeballos def. Facundo Argüello / Agustín Velotti, 7–6(8–6), 6–2