| Sergio Ortega | |
| Fullname: | Sergio Alejandro Ortega Cantero |
| Birth Date: | 1988 9, df=yes |
| Birth Place: | Itaugua, Paraguay |
| Currentclub: | Santiago Morning |
| Clubnumber: | 29 |
| Position: | Midfielder |
| Youthclubs1: | 12 de Octubre |
| Years1: | 2005–2008 |
| Years2: | 2008 |
| Years3: | 2009– |
| Clubs3: | Santiago Morning[1] |
| Caps1: | 64 |
| Goals1: | 12 |
| Caps2: | 3 |
| Goals2: | 0 |
| Caps3: | 13 |
| Goals3: | 0 |
Sergio Alejandro Ortega Cantero (born 26 September 1988 in Itaugua) is a Paraguayan football midfielder, who plays in Chile for Santiago Morning.[2]