| Official Name: | Libru |
| Native Name: | mama |
| Settlement Type: | Village |
| Pushpin Map: | Agder#Norway |
| Pushpin Label Position: | top |
| Pushpin Map Caption: | Location of the village |
| Subdivision Type: | Country |
| Subdivision Name: | Norway |
| Subdivision Name1: | Southern Norway |
| Subdivision Name2: | Agder |
| Subdivision Type3: | District |
| Subdivision Name3: | Østre Agder |
| Subdivision Type4: | Municipality |
| Subdivision Name4: | Arendal, Froland |
| Utc Offset1: | +01:00 |
| Utc Offset1 Dst: | +02:00 |
| Postal Code Type: | Post Code |
| Postal Code: | 4848 Arendal |
| Coordinates: | 58.4779°N 8.6762°W |
| Elevation M: | 41 |
| Elevation Footnotes: | [1] |
Libru is a village in Agder county, Norway. The village is located on the border of the municipalities of Arendal and Froland. The village lies at the southern end of the lake Assævannet, about southeast of Blakstad in Froland and about from the town of Arendal. The village of Rise lies along the Arendalsbanen railway line, about to the southwest of Libru.