| Valdeolea | |
| Settlement Type: | Municipality |
| Pushpin Map: | Spain |
| Pushpin Label Position: | Bottom |
| Pushpin Map Caption: | Location in Spain |
| Coordinates: | 42.8778°N -4.1622°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Spain |
| Subdivision Type1: | Autonomous community |
| Subdivision Type2: | Province |
| Subdivision Type3: | Comarca |
| Subdivision Type4: | Judicial district |
| Subdivision Name2: | Cantabria |
| Subdivision Name3: | Campoo |
| Subdivision Name4: | Reinosa |
| Leader Title: | Mayor |
| Leader Name: | Fernando Franco González |
| Area Total Km2: | 83.72 |
| Elevation M: | 953 |
| Population Density Km2: | auto |
| Postal Code Type: | Postal code |
| Postal Code: | 39410 |
| Area Code Type: | Dialing code |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
Valdeolea (pronounced as /es/) is a municipality in Cantabria, northern Spain. It is located in a hill region crossed by the Camesa river and its numerous affluents.
It is formed by 19 towns and villages: Barriopalacio, Bercedo, Camesa, Castrillo del Haya, Cuena, El Haya, Las Henestrosas de las Quintanillas, Hoyos, La Loma, Mata de Hoz, Mataporquera, Matarrepudio, Olea, La Quintana, Las Quintanillas, Rebolledo, Reinosilla, San Martín de Hoyos and Santa Olalla. Mataporquera is the largest of them, with some 1,000 inhabitants, and also the municipal seat.
The municipal territory is home to eight menhirs, located on the left bank of the Camesa in the Monte Omeda site. It also houses remains from the Roman age and the Middle Ages. Also notable is the Romanesque churches of Santa Eulalia la Toma (1176), Santa Maria de las Henestrosas de las Quintanilla (12th century), and Santa Maria (at Olea), modified in the 16th-17th centuries.