| Date: | 11 – 16 July |
| Edition: | 14th |
| Category: | ATP Challenger Tour |
| Location: | Medellín, Colombia |
| Surface: | Clay (Outdoor) |
| Champs: | Nicolás Jarry |
| Champd: | Darian King /  Miguel Ángel Reyes-Varela |
The 2017 Claro Open Medellín was a professional tennis tournament played on outdoor clay courts. It was the 14th edition of the tournament, which was part of the 2017 ATP Challenger Tour. It took place in Medellín, Colombia, between 11 and 16 July 2017.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Dominican Republic | Víctor Estrella Burgos | 96 | 1 | |
| Darian King | 119 | 2 | ||
 Brazil | João Souza | 150 | 3 | |
| Nicolás Jarry | 182 | 4 | ||
| Marcelo Arévalo | 234 | 5 | ||
 Ecuador | Roberto Quiroz | 239 | 6 | |
| Dominican Republic | José Hernández-Fernández | 247 | 7 | |
 France |
The following players received wild cards into the singles main draw:
Gabriel Carvajal
Charles Force
Sergio Luis Hernández Ramírez Carlos SalamancaThe following players received entry from the qualifying draw:
Franco Emanuel Egea José Olivares
David SoutoThe following players received entry into the singles main draw as lucky losers:
Alejandro MendozaSee main article: 2017 Claro Open Medellín – Singles.
João Souza 6–1, 3–6, 7–6(7–0).See main article: 2017 Claro Open Medellín – Doubles.
Miguel Ángel Reyes-Varela def. Nicolás Jarry / Roberto Quiroz 6–4, 6–4.