| Sérgio Petecão | |
| Office: | Senator from Acre |
| Term Start: | February 1, 2011 |
| Office2: | Federal Deputy from Acre |
| Term Start2: | February 1, 2007 |
| Term End2: | January 31, 2011 |
| Office3: | State Deputy of Acre |
| Term Start3: | January 1, 1995 |
| Term End3: | January 1, 2007 |
| Office4: | President of the Legislative Assembly of Acre |
| Term Start4: | January 1, 1999 |
| Term End4: | January 1, 2007 |
| Predecessor4: | Alvaro Romero |
| Successor4: | Edvaldo Magalhães |
| Birth Name: | Sérgio de Oliveira Cunha |
| Birth Date: | 24 April 1960 |
| Birth Place: | Rio Branco, Acre, Brazil |
| Party: | PSD (2011–present) |
| Otherparty: | PMN (1990–2011) |
Sérgio Petecão (born April 24, 1960) is a Brazilian politician. He has represented Acre in the Federal Senate since 2011. He is a member of the Social Democratic Party.[1]