The Orkney Vole is a distinct subspecies group of the common vole (Microtus arvalis), and is found only in the Orkney Islands, off the northern coast of Scotland, United Kingdom. It resembles the field vole (Microtus agrestris) but has shorter, paler fur.
Orkney voles do not occur in mainland Britain, nor elsewhere in the British Isles, and they are thought to have been introduced to the Orkney archipelago by humans in Neolithic times. The oldest known radiocarbon-dated fossil of the Orkney vole is 4,600 years old, this marks the latest possible date of introduction. The likely source areas for Orkney voles are what is now France or Spain