| Martín Rivas | |
| Fullname: | Martín Sebastián Rivas Fernández |
| Birth Date: | 1977 2, df=yes |
| Birth Place: | Montevideo, Uruguay |
| Position: | Defender |
| Years1: | 1995–1997 |
| Years2: | 1998–2002 |
| Years3: | 1998–1999 |
| Years4: | 2000–2001 |
| Years5: | 2002 |
| Years6: | 2003–2004 |
| Years7: | 2005–2006 |
| Years8: | 2006–2007 |
| Clubs3: | → Perugia (loan) |
| Clubs4: | → Málaga (loan) |
| Clubs8: | Deportivo Maldonado |
| Caps1: | 50 |
| Caps2: | 1 |
| Caps3: | 25 |
| Caps4: | 6 |
| Caps5: | 11 |
| Caps6: | 26 |
| Caps7: | 19 |
| Caps8: | 7 |
| Goals1: | 5 |
| Goals2: | 0 |
| Goals3: | 0 |
| Goals4: | 0 |
| Goals5: | 0 |
| Goals6: | 3 |
| Goals7: | 0 |
| Goals8: | 0 |
| Nationalyears1: | 1997 |
| Nationalyears2: | 2000 |
| Nationalyears3: | 1997 |
| Nationalteam1: | Uruguay U-20 |
| Nationalteam2: | Uruguay U-23 |
| Nationalteam3: | Uruguay |
| Nationalcaps3: | 2 |
| Nationalgoals3: | 0 |
Martín Sebastián Rivas Fernández (born 17 February 1977) is an Uruguayan former footballer who played as a defender.
Born in Montevideo, the capital and largest city of Uruguay, he started to play for Danubio then in January 1998 signed by Inter, which he is dual Uruguayan-Spanish citizen, made him not occupy any non-EU quota.[1] He signed a contract until 30 June 2002. Inter also signed countryman Álvaro Recoba earlier that season. On 17 March 1998, he appeared in the 1997–98 UEFA Cup quarterfinal return leg against FC Schalke 04. Inter won in extra time and eventually won the cup.[2] He made his Serie A debut on 16 May 1998 against Empoli.
After a season on loan at Perugia he came back to Inter, but did not manage to make any appearances in 1999–2000 season, although sitting on the bench on several Serie A games.[3]
The following season he was loaned to Málaga, prior to return to Uruguay where he ended his career in 2007, aged 30.[4]
He played 2 caps with his national team and was in the squad of 1997 FIFA Confederations Cup.