Grímsey is a small Icelandic island, 40 kilometres (25mi) off the north coast of the main island of Iceland and straddling the Arctic Circle (the Circle shifts northward by about 14.5 metres per year). In January 2011 Grímsey had 86 inhabitants.
Until a vote in 2009 to amalgamate with Akureyri, it constituted the hreppur (municipality) of Grímseyjarhreppur. The only settlement is Sandvík.