Legislative district of Oriental Mindoro

The Legislative Districts of Oriental Mindoro, namely the first and second districts, are the representations of the Province of Oriental Mindoro in the Philippine House of Representatives. Oriental Mindoro was represented as part of Mindoro Province until 1951, when the latter was divided and its representative became the representative of Oriental Mindoro. It was part of the representation of Region IV-A from 1978 to 1984, and from 1984 to 1986 it elected 2 assemblymen at-large. In 1986, it was redistricted into two legislative districts.