| Carlos Octavio Castellanos | |
| Birth Date: | 1977 5, df=yes |
| Birth Place: | Tapachula, Chiapas, Mexico |
| Occupation: | Deputy and lawyer |
| Party: | PVEM |
Carlos Octavio Castellanos Mijares (born 26 May 1977) is a Mexican politician affiliated with the PVEM. As of 2013 he served as Deputy of the LXII Legislature of the Mexican Congress representing Chiapas replacing Raciel López Salazar.[1]