| Nelson Sarmento Viegas | |
| Fullname: | Nelson Sarmento Viegas |
| Birth Date: | 24 December 1999 |
| Birth Place: | Atambua, Indonesia |
| Height: | 1.71 m |
| Position: | Defender |
| Youthclubs1: | Teouma Academy |
| Years1: | 2015– |
| Clubs1: | Karketu Dili |
| Nationalyears1: | 2013 |
| Nationalteam1: | Timor-Leste U14 |
| Nationalcaps1: | 4 |
| Nationalgoals1: | 4 |
| Nationalyears2: | 2015–2018 |
| Nationalteam2: | Timor-Leste U19 |
| Nationalcaps2: | 13 |
| Nationalgoals2: | 3 |
| Nationalyears3: | 2016– |
| Nationalteam3: | Timor-Leste |
| Nationalcaps3: | 21 |
| Nationalgoals3: | 1 |
| Ntupdate: | 14 December 2021 |
Nelson Sarmento Viegas (born 24 December 1999) is a football Indonesia player who currently plays for Timor-Leste national football team as a defender. Born in Indonesia, he represents the Timor-Leste national team.
Viegas scored his first international goal against Cambodia on 21 October 2016.[1]