Kilen is a village in Tvedestrand municipality in Agder county, Norway. The village is located on the island Sandøya, midway between the popular tourist destinations of Kilsund and Lyngør. The village is about 11 km southeast of the town of Tvedestrand on the mainland and about 3 km southwest of the village of Klåholmen on the other end of the island. The village (and island) is only accessible by boat.