聪岛是丹麦的岛屿，位于卡特加特海峡，由中日德兰大区负责管辖，长3.9公里、宽1.5公里，面积3.52平方公里，最高点海拔高度24米，2012年人口112。

Tunø is a Danish island in the Kattegat, approximately 4 km west of the neighbouring island of Samsø. The island covers an area of 3.52 square kilometres (1.36 square miles) and has 113 inhabitants, as of 2005. It comes under the administration of Odder municipality. Tunø By is the only village on the island, with the hamlet of Løkkegårde as the second most populated area.