The outlying islands of Scotland are not part of the larger archipelagos and island groups of Scotland and are therefore not part of the Hebrides , the Northern Isles or the Islands of the Forth and Clyde estuaries. None of these islands ares currently inhabited And Few of Them Were ever, ALTHOUGH Hirta Was occupied from the Neolithic age up to 1930 and Stroma Was Permanently occupied up to the 1970s and thereafter by lighthouse keepers and Their families up to 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”. [Note 1] A complication relating to the membership of this group, which is different from 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 Donanthat 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.  [Note 2]
East of St Kilda are the Flannan Isles , the location of an enduring mystery that occurred in December 1900, when all three lighthouse keepers vanished without trace.  Further north and east are the outlets of Sula Sgeir and North Rona , which have strong cultural links to the Outer Hebrides . North Rona is 71 km (44 mi) north of Butt of Lewis and 18 km (11 mi) east of Sula Sgeir. It is the remotest island in the British Isles to have been inhabited on a long-term basis. It is also closer to Scotland than the Faroe Islands . Sule Skerry andSule Stack further links east and are administratively part of Orkney .
The islands of the north coast are the main centers of population, for the most part. There is a large group of larger islands near Tongue Bay, but the largest on this coast is Stroma in the Pentland Firth , which lies between Caithness and Orkney. Innis Mhòr in the Dornoch Firth is the largest of a handful of small islets off the coast of Easter Ross . Further south are Inchcapeoff the coast of Angus , and Mugdrum , the only substantial island in the Firth of Tay . There is a cluster of islands in theSolway Firth that marks the south western border of Scotland, including the Islands of Fleet, in Wigtown Bay .
Most of the smaller islets are still in the modern world. Nonetheless, some have a degree of historical significance. Castle Mestag is in a state of the art market and is accessible only through a drawbridge.  [Note 5] Some islets are APPROBATION as “storm washed” That meaning, ALTHOUGH a proportion of Their bulk Remains Above mean sea level , wide waves wash over the top of ’em During storms, rendering uninhabitable em.
Finally, there is Rockall , which is 367 kilometers (228 mi) to the west of North Uist . It is a small rocky islet in the North Atlantic which could be, in James Fisher’s words, “the most isolated small rock in the oceans of the world”  [Note 6] and which was declared part of Scotland by the Island of Rockall Act 1972 .   However, the legality of the claim is disputed by the Republic of Ireland, Denmark and Iceland and is probably unenforceable in international law.   [Note 7]
|Island||Group||Area ( ha )||Height (m) [Note 8]||Light [Note 9]||Last inhabited[Note 10]||Surrounding islets|
|Ardwall Isle||Islands of Fleet||22||34||No.||18th century? [Note 11]||Old Man of Fleet|
|Barlocco Isle||Islands of Fleet||10||10||No.||Inhabitation unlikely||The Three Brethren|
|Big Scare||Solway Firth ||<1||21 ||No.||Inhabitation very unlikely||Little Scares (3)|
|Boreray||St Kilda||77||384||No.||Iron Age ? [Note 12]||An t-Sail, Sgarbhstac|
|Bròna Cleit||Flannan Isles||1||c. 20||No.||Inhabitation very unlikely||None|
|Dùn||St Kilda||32 ||178||No.||Unknown [Note 13]||Hamalan, Giasgeir, Sgeir Ass an Rubha, Sgeir Mhòr|
|Eilean to ‘Ghobha||Flannan Isles||8||57||No.||Inhabitation very unlikely||None|
|Eilean Choraidh||Loch Eriboll||26 ||26||No.||1930s||A chlèit|
|Eilean Hoan||Loch Eriboll||28 ||25||No.||Early 1800s ||To Ghoil-sgeir, An Cruachan, An Dubh-sgeir, Eilean Cluimhrig, Pocan Smoo|
|Eilean Mòr||Flannan Isles||17.5  [Note 14]||88||Yes||1971 ||Deirc na Sgeir, Làmh to Sgeir Beag, Làmh an Sgeir Mòire|
|Eilean nan Ròn||Tongue Bay||138||76||No.||1930s or 40s [Note 15]||An Innis, Eilean Iosal, Meall Thailm|
|Eilean Taighe||Flannan Isles||11||59||No.||Unknown [Note 16]||Gealtaire Beag, Gealtaire Mòr, Hamasgeir|
|Hestan Island||Solway Firth||c.11||54||Yes||Unknown [Note 17]||None|
|hirta||St Kilda||670||430||No.||1930||An Torc, Bradastac, Mina Stac, Sgeir Domhnuill, Sgeir Mhòr, Sgeir nan Sgarbh|
|Inchcape||Angus coast||0.61 ||0 [Note 18]||Yes||1988 [Note 19]||None|
|Innis Mhòr||Easter Ross||26||<5||No.||Shifting sands||None [Note 20]|
|Little Ross||Solway Firth||7||35||Yes||Inhabitation unlikely||Sugarloaf|
|Mugdrum Island||Firth of Tay||32 ||4||No.||Inhabitation unlikely||None|
|Murray’s Isles||Islands of Fleet||1 [Note 21]||c.5||No.||Inhabitation unlikely [Note 22]||Horse Mark|
|Neave Island||Tongue Bay||30 ||70||No.||Unknown [Note 23]||Stac an Fhamhair|
|North Rona||North west||109||108||No.||1885||Gealldraig Mhòr, Lòba Sgeir|
|Rabbit Islands||Tongue Bay||32||45||No.||Unknown [Note 24]||Dubh Sgeir-Mhòr, Eilean to Chaoil, Eilean Creagach, Sgeir year, Talmine Island|
|Roaireim||Flannan Isles||5||52||No.||Inhabitation very unlikely||None [Note 25]|
|Rockall||North Atlantic||0.0624 [Note 26]||21.4 ||No.||Storm washed||Hasselwood Rock , Helen’s Reef|
|Rough Island||Solway Firth||8 ||24 ||No.||Inhabitation unlikely||Craig Roan, Spring Stones|
|Sgeir Toman||Flannan Isles||4||43||No.||Inhabitation very unlikely||Sgeir Righinn|
|Soay||St Kilda||99||378||No.||Inhabitation unlikely [Note 27]||Am Plastair, Sgeir Mac Righ Lochlainn, Stac Biorach , Stac Dona, Stac Soay.|
|Soraigh||Flannan Isles||6||41||No.||Inhabitation very unlikely||None|
|Stac an Armin||St Kilda||9||196||No.||Never inhabited [Note 28]||None|
|Stac Lee||St Kilda||1||172||No.||Never inhabited||None|
|Stac Levenish||St Kilda||<1||62||No.||Never inhabited||Na Bodhan|
|Sula Sgeir||North west||15 [Note 29]||70||Yes||Storm washed ||Bogha Córr, Grallsgeir|
|Sule Skerry||Orkney||16 ||12 ||Yes||1982 ||None|
|Sule Stack||Orkney||2.9 ||36 ||No.||Storm washed||None|
Smaller islets off the mainland
There are various smaller islets and skerries that are only exposed at lower stages of the tide in the seas around Scotland. Craiglethy is part of the Fowlsheugh nature reserve . The Three Kings, off the coast of Easter Ross near Balintore , is also known as Creag Harail or Harold’s Rock and called The King’s Sons in the New Statistical Account of Scotland . According to legend, three sounds of a Danish prince, sailing to avenge their sister’s wrongs, were wrecked here and their collective name. Their graves were marked by the sculptured stones of Nigg , Shandwick and Hilton of Cadboll. Another story at Nigg Rocks below the North Sutor. 
- Solway Firth : Inch
- North coast (from west to east): Stac an Dunain, Duslic, Stack Clò Kearvaig, An Garbh-eilean, Na Glas Leacan, Eilean Dubh, Clach Bheag na Faraid, Clach Mhòr na Faraid, Aigeach, Eilean Polsain, Boursa Island, Glas -eilean Mòr, Garbh-eilean, Clett Wester, Middle Clett, Easter Clett, Little Clett, Clett .
- East coast :
- North Moray Firth (from north to south): The Knee, Stacks of Duncansby, Stack o ‘Brough, South Stack, The Stacks, Eilean na h-Aibhne,  Three Kings. 
- South Moray Firth (from west to east): Covesea Skerries , Halliman Skerries, Boar’s Head Rock, West Muck, East Muck, Craigenroan, Fiddle Rock Bow , Collie Rocks, Craigandargity.
- Kinnaird Head to the Bullers of Buchan : The Ron, The Skerry, Miekle Mackie, Miekle Donnon, Little Donnon, Craig Snow, Meikle Dumeath, Little Dumeath.
- Bullers of Buchan to Girdle Ness: Dunbuy, The Donnons, Skellyis of Harrol.
- Girdle Ness to Buddon Ness: Craiglethy , Craigmaroinn , May Craig .
Other than Mugdrum in the Firth of Tay and the Islands of the Forth there are no genuine islands on the east coast of Scotland south of Buddon Ness.