Largest lakes & reservoirs in United Kingdom by shoreline length
This is a comparison for lakes within United Kingdom > - Compared by Longest Shoreline Length in miles.Note: For some lakes, "Longest Shorelines" data is unknown or does not apply, so this table may display fewer lakes than the total 43 articles we have published for United Kingdom lakes.
Search results: Sort lakes by miles of shoreline
Lake name ![]() |
Shoreline length in miles ![]() |
Lake description |
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Strangford Lough (Down, Northern Ireland, United Kingdom) |
100 mi | Also known as Strangford Lake, Loch Cuan, Strangford Strangford Lough (Lake) is a 37,066-acre inland, tidal, salt water lake off the east coast of County Down in Northern Ireland. Separated from the Iris… |
Loch Lomond (Central, Scotland, United Kingdom) |
95 mi | Also known as Lake Lomond Due to its stunningly beautiful location, Loch Lomond is one of the more popular lochs or lakes in Western Scotland. Although not the longest lake at… |
Loch Awe (Central, Scotland, United Kingdom) |
80 mi | Also known as Lake Awe Scenic Loch Awe is located in central Scotland’s Argyll and Bute Council region. Renowned for its trout fishing, the lake is a fantastic holiday getaw… |
Lough Neagh (Antrim, Northern Ireland, United Kingdom) |
78 mi | Also known as Lake Neagh, The Lough Nestled in the heart of Northern Ireland, Lough (Lake) Neagh is the largest freshwater lake in the British Isles. Covering over 96,800 acres with beau… |
Loch Shiel (Highlands & Moray, Scotland, United Kingdom) |
48 mi | Also known as Loch Seile Surrounded by one of the few remaining areas of true wilderness in Scotland, the picturesque scenery around Scotland’s Loch Shiel has been featured in… |
Loch Shin (Highlands & Moray, Scotland, United Kingdom) |
38 mi | Loch Shin is a long and narrow glacial lake located in County Sutherland, part of the Scottish Highlands. This freshwater loch measures about 17.5 mil… |
Loch Ericht (Highlands & Moray, Perthshire, Scotland, United Kingdom) |
37 mi | Also known as Lake Ericht Hidden in the shadow of Ben Alder Munro or Mountain, Loch Ericht is a beautiful freshwater lake on the border between Perth and Kinross and the Highla… |
Loch Maree (Highlands & Moray, Scotland, United Kingdom) |
31 mi | Remote, desolate, historic, beautiful: all of these describe Loch Maree. Located in the Highlands and Morey Region of Northwestern Scotland, Loch Mare… |
Loch Morar (Highlands & Moray, Scotland, United Kingdom) |
27 mi | The deepest loch in the western Highlands of Scotland is beautiful Loch Morar. Gouged from the rock by glaciers, this water body reaches the extreme d… |
Ullswater (England, England's Northwest, United Kingdom) |
22 mi | Also known as Ullswater Lake, The Lake District Cumbria, in northwest England’s famous Lake District, is home to diverse natural features that attract visitors from near and far. Ullswater, a natura… |
Loch Rannoch (Perthshire, Scotland, United Kingdom) |
22 mi | Nestled in the Perth and Kinross region of the Scottish Highlands, Loch Rannoch is a glacial freshwater lake often considered to be the most beautiful… |
Loch Assynt (Highlands & Moray, Scotland, United Kingdom) |
16 mi | Hidden away in a remote corner of Northwestern Scotland, Loch Assynt offers a scenic vista consisting of nearly 2,000 acres of sparkling cold waters,… |