Klemensker is a village in the north-western part of the Danish island of Bornholm. With a population of 633 (1 January 2022), it is located on a crossroads 13 km north-east of Rønne, 7 km east of the coastal town Hasle and 12 km south of Allinge. It is known for its cheese production. Beginning at the village inn, , the road (Danish vej) begins with an extremely steep drop and later a long climb up the (Klemensker Hill). The farm (Danish gård/google:gaard) Simblegård is to the north.