| Official Name: | Austmarka |
| Settlement Type: | Village |
| Pushpin Map: | Vestland#Norway |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location of the village |
| Subdivision Type: | Country |
| Subdivision Name: | Norway |
| Subdivision Name1: | Western Norway |
| Subdivision Name2: | Vestland |
| Subdivision Type3: | District |
| Subdivision Name3: | Nordhordland |
| Subdivision Type4: | Municipality |
| Subdivision Name4: | Alver |
| Utc Offset1: | +01:00 |
| Utc Offset1 Dst: | +02:00 |
| Area Total Km2: | 0.23 |
| Population As Of: | 2019 |
| Population Total: | 371 |
| Population Density Km2: | 1613 |
| Postal Code Type: | Post Code |
| Postal Code: | 5938 Sæbøvågen |
| Elevation M: | 34 |
| Elevation Footnotes: | [1] |
| Coordinates: | 60.6181°N 5.1806°W |
Austmarka is a village in Alver Municipality (formerly Radøy Municipality) in Vestland county, Norway. The village is located on the southern end of the island of Radøy, about east of the village of Sæbø and about north of the village of Alverstraumen.
The 0.23km2 village has a population (2019) of 371 and a population density of .[2]