| Diego Vallejos | |
| Fullname: | Diego Alfredo Vallejos Hernández |
| Birth Date: | 16 March 1990 |
| Birth Place: | Colbún, Chile |
| Height: | 1.73 m |
| Position: | Winger Second striker |
| Currentclub: | Deportes Linares |
| Clubnumber: | 18 |
| Youthclubs1: | Deportes Linares |
| Years1: | 2009–2012 |
| Clubs1: | Deportes Linares |
| Caps1: | 117 |
| Goals1: | 78 |
| Years2: | 2013–2017 |
| Clubs2: | Audax Italiano |
| Caps2: | 104 |
| Goals2: | 21 |
| Years3: | 2013–2014 |
| Clubs3: | Audax Italiano B |
| Caps3: | 19 |
| Goals3: | 11 |
| Years4: | 2017–2020 |
| Clubs4: | Universidad Católica |
| Caps4: | 6 |
| Goals4: | 0 |
| Years5: | 2018 |
| Clubs5: | → Palestino (loan) |
| Caps5: | 13 |
| Goals5: | 1 |
| Years6: | 2019 |
| Clubs6: | → Curicó Unido (loan) |
| Caps6: | 7 |
| Goals6: | 0 |
| Years7: | 2020 |
| Clubs7: | → Coquimbo Unido (loan) |
| Caps7: | 19 |
| Goals7: | 1 |
| Years8: | 2021 |
| Clubs8: | Coquimbo Unido |
| Caps8: | 7 |
| Goals8: | 1 |
| Years9: | 2021 |
| Clubs9: | Santiago Wanderers |
| Caps9: | 15 |
| Goals9: | 1 |
| Years10: | 2022 |
| Caps10: | 19 |
| Goals10: | 7 |
| Years11: | 2023– |
| Clubs11: | Deportes Linares |
| Caps11: | 22 |
| Goals11: | 3 |
| Club-Update: | 13 March 2024 |
Diego Alfredo Vallejos Hernández (born 16 March 1990) is a Chilean footballer who plays for Deportes Linares as a forward.