List of outlying islands of Scotland

The outlying islands of Scotland incorporate those that are not part of the larger archipelagos and island groups of Scotland and are thus not listed as being part of the Hebrides, the Northern Isles or the Islands of the Forth and Clyde estuaries. None of these islands are currently inhabited and few of them ever were, although Hirta was occupied from the Neolithic age until 1930 and Stroma was permanently occupied until the 1970s and thereafter by lighthouse keepers and their families until 1996. Several other outlying islands have lighthouses, none of which are still manned.

In this list, an island is defined as "land that is surrounded by seawater on a daily basis, but not necessarily at all stages of the tide, excluding human devices such as bridges and causeways". A complication relating to membership of this list is that there are various descriptions of the scope of the Hebrides, the large group of islands that lie off Scotland's west coast. The Collins Encyclopedia of Scotland describes the Inner Hebrides as lying "east of The Minch", which would include any and all offshore islands. There are various islands that lie in the sea lochs such as Eilean Bàn and Eilean Donan that might not ordinarily be described as "Hebridean" but no formal definitions exist and for simplicity they are included in the List of Inner Hebrides rather than here.

There are several small groupings of outlying islands involved. The most significant of these is the St Kilda archipelago which lies 64 kilometres (40 mi) west-northwest of North Uist and is now a World Heritage Site. It is one of the few to hold joint status for its natural and cultural qualities. At 196 metres (643 ft) Stac an Armin is the highest sea stack in the British Isles and in July 1840, the last great auk seen in the British Isles was captured there.

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