| Lageråa | |
| Pushpin Map: | Innlandet#Norway |
| Pushpin Map Caption: | Location of the river |
| Subdivision Type1: | Country |
| Subdivision Name1: | Norway |
| Subdivision Type2: | County |
| Subdivision Name2: | Innlandet |
| Subdivision Type3: | Municipalities |
| Subdivision Name3: | Stange Municipality |
| Length: | 22.6km (14miles) |
| Discharge1 Avg: | 0.28m3/s |
| Source1: | Confluence of the rivers Gåsbubekken and Østeråa |
| Source1 Location: | Hamar, Norway |
| Source1 Coordinates: | 60.8966°N 11.2213°W |
| Mouth: | Svartelva |
| Mouth Location: | Ilseng, Norway |
| Mouth Coordinates: | 60.7733°N 11.218°W |
| Basin Size: | 31.38km2 |
Lageråa is a small river in Innlandet county, Norway. The 22.6km (14miles) long river flows from a marshy area in the Vang Almenning in Hamar Municipality southwards. For a time, the river forms the border between Hamar and Løten municipalities. When the river reaches the village of Ilseng in Stange, it discharges into the larger river Svartelva.[1]