| Marcos Fuentes | |
| Fullname: | René Marcos Fuentes Montoya |
| Birth Date: | 5 June 1973 |
| Birth Place: | Naucalpan, State of Mexico, Mexico |
| Height: | 1.79 m |
| Position: | Defender |
| Years1: | 1996–1997 |
| Caps1: | 5 |
| Goals1: | 0 |
| Manageryears1: | 2008 |
| Manageryears2: | 2009 |
| Manageryears3: | 2011 |
| Manageryears4: | 2011 |
| Manageryears5: | 2012 |
| Manageryears6: | 2012–2014 |
| Manageryears7: | 2015 |
| Manageryears8: | 2015 |
| Manageryears9: | 2016–2017 |
| Manageryears10: | 2019–2021 |
| Manageryears11: | 2021–2022 |
| Manageryears12: | 2022–2023 |
| Managerclubs1: | Pato Baeza F.C. |
| Managerclubs2: | Necaxa Rayos (Assistant) |
| Managerclubs3: | Guayaberos de Calvillo |
| Managerclubs5: | Atlético San Marcos |
| Managerclubs6: | Real Cuautitlán |
| Managerclubs8: | Santos de Soledad (Assistant) |
| Managerclubs9: | Atlético Estado de México |
| Managerclubs10: | Dongu |
| Managerclubs11: | Cuervos Blancos |
| Managerclubs12: | Dongu |
Marcos René Fuentes Montoya (born June 5, 1973) is a Mexican football manager and former player.