| Sub-provinces of the Philippines | |
|---|---|
 Map of the Mountain Province showing its extent in 1918. The map shows borders of its sub-provinces. | |
| Category | Province sub-unit |
| Location | Philippines |
| Found in | Provinces |
| Subdivisions | |
The sub-provinces of the Philippines were a political and administrative division of the Philippines. The sub-provinces were a part of a larger "regular" province and residents of a sub-province participated in provincial elections of the parent province.