| Date: | 28 August – 3 September |
| Edition: | 21st |
| Surface: | Clay |
| Location: | Quito, Ecuador |
| Champs: | Nicolás Jarry |
| Champd: | Marcelo Arévalo /  Miguel Ángel Reyes-Varela |
| Before Year: | 2014 |
| After Year: | 2021 |
The 2017 Quito Challenger was a professional tennis tournament played on clay courts. It was the 21st edition of the tournament which was part of the 2017 ATP Challenger Tour. It took place in Quito, Ecuador between 28 August and 3 September 2017.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Dominican Republic | Víctor Estrella Burgos | 90 | 1 | |
 Argentina | Renzo Olivo | 112 | 2 | |
| Nicolás Jarry | 130 | 3 | ||
 Austria | Sebastian Ofner | 132 | 4 | |
| Austria | Gerald Melzer | 134 | 5 | |
 Slovakia | Andrej Martin | 184 | 6 | |
 Brazil | Guilherme Clezar | 224 | 7 | |
 India | Prajnesh Gunneswaran | 225 | 8 |
The following players received wildcards into the singles main draw:
The following player received entry into the singles main draw as an alternate:
The following players received entry from the qualifying draw:
See main article: 2017 Quito Challenger – Singles.
Gerald Melzer 6–3, 6–2.See main article: 2017 Quito Challenger – Doubles.
Miguel Ángel Reyes-Varela def. Nicolás Jarry / 
Roberto Quiroz 4–6, 6–4, [10–7].
