| Lillö Ruin | |
| Native Name: | Lillö Borgruin |
| Location: | Kristianstad Municipality |
| Map Type: | Sweden Skåne |
| Coordinates: | 56.0359°N 14.1196°W |
| Map Size: | 220 |
| Type: | Ruin |
| Demolished: | 1658 |
| Open To Public: | Yes |
Lillö Ruin is the ruin of a medieval castle, located in Kristianstad municipality, Scania, Sweden.[1]
Not much is known of the earliest history of Lillö ("Little island"). A fortress was built there, probably as early as the late 13th century. The fortress was gradually improved to become more of a castle, Lillöhus.[2] In the war of 1657 - 1658 Denmark lost the province of Scania to Sweden and Lillöhus was demolished. It has remained a ruin ever since. The fields and wetlands surrounding the ruin are rich in bird life.