Grankullaviken

thumb|right|350px|Grankullaviken and surroundings. Grankullaviken (or Grankullavik) is a shallow bay at the northern tip of Öland, Sweden, located in Böda socken, Borgholm Municipality. The bay is almost completely enclosed by two headlands and a few small shoal islands (Stora grundet, Borren, and Lilla grundet). Grankullavik is also the name of a village on the bay. The lighthouse Långe Erik on the Stora grundet island is officially named Ölands norra udde (Öland's northernmost point), even though the western headland extends a bit further north than the island upon which it stands. The eastern headland is the site of the windswept forest and nature reserve Trollskogen.

==History== thumb|center|850px|Panoramic image of Grankullaviken from the lighthouse Långe Erik. In medieval times the bay was also referred to as Örehamn, and was probably important already in prehistoric times. This part of Öland was an important landing point for merchants in northern Kalmar County, and much of the shipping toward Gotland passed through this area as well. The bay and its port were of paramount importance to the economy of Boda. In modern times; Grankullaviken was important for the shipping of timber.