| Sebastián Regueiro | |
| Fullname: | Marcelo Sebastián Regueiro Pintos |
| Birth Date: | 13 September 1989[1] |
| Birth Place: | Montevideo, Uruguay |
| Height: | 1.68 m |
| Currentclub: | I.A. Potencia |
| Position: | Winger |
| Youthyears1: | –2007 |
| Youthclubs1: | Cerro |
| Years1: | 2007–2009 |
| Clubs1: | Cerro |
| Caps1: | 18 |
| Goals1: | 3 |
| Years2: | 2010 |
| Clubs2: | → El Tanque Sisley (loan) |
| Caps2: | 1 |
| Goals2: | 0 |
| Years3: | 2010 |
| Clubs3: | Huracán |
| Caps3: | 17 |
| Goals3: | 4 |
| Years4: | 2011 |
| Clubs4: | Plaza Colonia |
| Caps4: | 9 |
| Goals4: | 1 |
| Years5: | 2012– |
| Clubs5: | San Francisco |
| Pcupdate: | February 1, 2012 |
Sebastián Regueiro (born 13 September 1989 in Montevideo) is an Uruguayan footballer who currently plays as a winger for San Francisco in the Liga Panameña de Fútbol. He is the nephew of Mario Regueiro who also plays as a winger but for Lanús in Argentina.