The 2017 Challenger Ciudad de Guayaquil was a professional tennis tournament played on clay courts. It was the thirteenth edition of the tournament which was part of the 2017 ATP Challenger Tour. It took place in Guayaquil, Ecuador between October 30 and November 4, 2017.
| 2017 Challenger Ciudad de Guayaquil | |
|---|---|
| Date | 30 October – 4 November |
| Edition | 13th |
| Surface | Clay |
| Location | Guayaquil, Ecuador |
| Champions | |
| Singles | |
 Gerald Melzer | |
| Doubles | |
 Marcelo Arévalo /  Miguel Ángel Reyes-Varela | |
Singles main-draw entrants edit
Seeds edit
| Country | Player | Rank1 | Seed |
|---|---|---|---|
 DOM
|
Víctor Estrella Burgos | 80 | 1 |
 ARG
|
Nicolás Kicker | 86 | 2 |
 ESP
|
Roberto Carballés Baena | 99 | 3 |
 ITA
|
Marco Cecchinato | 108 | 4 |
| ARG
|
Carlos Berlocq | 117 | 5 |
 POR
|
Gastão Elias | 128 | 6 |
| AUT
|
Gerald Melzer | 138 | 7 |
 NOR
|
Casper Ruud | 139 | 8 |
- 1 Rankings are as of 23 October 2017.
Other entrants edit
The following players received wildcards into the singles main draw:
The following players received entry as alternates:
The following players received entry from the qualifying draw:
Champions edit
Singles edit
Gerald Melzer def. 
Facundo Bagnis 6–3, 6–1.
Doubles edit
Marcelo Arévalo / 
Miguel Ángel Reyes-Varela def. 
Hugo Dellien / Federico Zeballos 6–1, 6–7(7–9), [10–6].