| Type: | municipality |
| Official Name: | Orcajo |
| Subdivision Name3: | Orcajo |
| Area Total Km2: | 28 |
| Population Density Km2: | auto |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
Orcajo is a municipality located in the province of Zaragoza, Aragon, Spain. According to the 2004 census (INE), the municipality has a population of 39 inhabitants.
The town is located near the Sierra de Santa Cruz and the Laguna de Gallocanta.