| Type: | ATP Challenger |
| Monterrey Challenger | |
| Current: | 2023 Monterrey Challenger |
| Event Name: | Monterrey Open (2015–2016) Abierto GNP Seguros (2017–) |
| Location: | Monterrey, Mexico |
| Venue: | Club Sonoma |
| Category: | ATP Challenger 110 (2015–2016) ATP Challenger 125 (2018–2019) ATP Challenger 100 (2017, 2020–) |
| Surface: | Hard |
| Draw: | 32S/24Q/16D |
| Prize Money: | $106,240 (2022) |
| Website: | Abierto GNP Seguros |
| Completed Event: | 2023 |
| Singles: | Nuno Borges |
| Doubles: |  André Göransson  Ben McLachlan |
The Monterrey Challenger is a professional tennis tournament played on hard courts. It is currently part of the ATP Challenger Tour. It is held annually in Monterrey, Mexico since 2015.
| Year | Champion[1] | Runner-up | Score | |
|---|---|---|---|---|
| Nuno Borges | 6–4, 7–6(8–6) | |||
 Fernando Verdasco | 4–6, 6–3, 7–6(7–3) | |||
| 2021 | Not held due to COVID-19 pandemic | |||
 Adrian Mannarino | 6–1, 6–3 | |||
 Alexander Bublik | 6–3, 6–2 | |||
| David Ferrer | 6–3, 6–4 | |||
| Maximilian Marterer | 7–6(7–3), 7–6(8–6) | |||
 Ernesto Escobedo | 6–4, 6–4 | |||
| Thiemo de Bakker | 7–6(7–1), 4–6, 6–3 |
| Year | Champions | Runners-up | Score | |
|---|---|---|---|---|
| André Göransson Ben McLachlan | 6–3, 6–4 | |||
 Hans Hach Verdugo Austin Krajicek | 6–0, 6–3 | |||
| 2021 | Not held due to COVID-19 pandemic | |||
 Karol Drzewiecki Gonçalo Oliveira | 6–7(5–7), 6–4, [11–9] | |||
| Evan King (3) Nathan Pasha | 7–5, 6–2 | |||
Marcelo Arévalo  Jeevan Nedunchezhiyan | 6–1, 6–4 | |||
| Christopher Eubanks Evan King (2) | 7–6(7–4), 6–3 | |||
| Evan King (1) Denis Kudla | 7–5, 6–2 | |||
| Thiemo de Bakker Mark Vervoort | Walkover |