| Date: | 7 – 13 October |
| Edition: | 2nd |
| Surface: | Clay |
| Location: | San Juan, Argentina |
| Champs: |  Guido Andreozzi |
| Champd: | Guillermo Durán / Máximo González |
The 2013 Copa San Juan Gobierno was a professional tennis tournament played on clay courts. It was the second edition of the tournament which was part of the 2013 ATP Challenger Tour. It took place in San Juan, Argentina between 7 and 13 October 2013.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| Argentina | Diego Schwartzman | 112 | 1 | |
| Argentina | Martín Alund | 121 | 2 | |
 Russian Federation | Andrey Kuznetsov | 144 | 3 | |
 Spain | Rubén Ramírez Hidalgo | 145 | 4 | |
| Argentina | Facundo Bagnis | 151 | 5 | |
| Argentina | Máximo González | 166 | 6 | |
| Argentina | Facundo Argüello | 168 | 7 | |
| Argentina | Guido Andreozzi | 180 | 8 |
The following players received wildcards into the singles main draw:
Facundo Alvo Pedro Cachin Tomás Lipovšek Puches Mateo Nicolás MartínezThe following players used protected ranking to get into the singles main draw:
Laurent RochetteThe following players received entry from the qualifying draw:
Francisco Bahamonde Gabriel Hidalgo Joaquin Monteferrario Gonzalo VillanuevaSee main article: 2013 Copa San Juan Gobierno – Singles.
Guido Andreozzi def. Diego Schwartzman 6–7(5–7), 7–6(7–4), 6–0See main article: 2013 Copa San Juan Gobierno – Doubles.
Guillermo Durán / Máximo González def. Martín Alund / Facundo Bagnis 6–3, 6–0