List of lakes and lochs of the United Kingdom

The list of Lakes and lochs of the United Kingdom is a link page for some large lakes of the United Kingdom (England, Scotland, Wales and Northern Ireland), including lochs fully enclosed by land.

Lakes in Scotland are called lochs, and in Northern Ireland loughs (pronounced the same way). In Wales a lake is also called a llyn. The words "loch" and "lough", in addition to referring to bodies of freshwater ("lakes"), are also applied to bodies of brackish water or seawater, which in other countries or contexts may be called fjord, firth, estuary, bay etc.

Some of the largest lakes in England and Wales are man-made reservoirs, or lakes whose size has been increased by damming.

Largest water bodies in the United Kingdom

NASA Landsat image of Lough Neagh

Loch Lomond in winter

Loch Ness With Urquhart Castle in the foreground

The islands of Loch Maree

This table includes the ten largest fresh water bodies by area. Lough Neagh is the largest water body in the UK by this measure, although Loch Ness is the largest by volume and contains nearly double the amount of water in all the lakes of England and Wales combined.^[1] Loch Morar is the deepest of the UK's lakes and Loch Awe the longest. Murray and Pullar (1910) note that the mean depth of Loch Ness is 57.4% of the maximum depth – higher than in any other large deep loch in Scotland.^[2] The deepest lake in England is Wast Water which descends to 76 metres (249 ft).

Name	Location	Area (mi^2)	Area (km^2)	Volume (km^3)	Length (km)	Max. depth (m)	Mean depth (m)[3]
Lough Neagh	Northern Ireland	147.87	383[4]	3.528	30	25	9
Lower Lough Erne	Northern Ireland	42.28	109.5[5]	1.3[6]	29[7]	62[6]	11.9[5]
Loch Lomond	Scotland	27.45	71	2.6	36	190	37[8]
Loch Ness	Scotland	21.78	56	7.45	39	230	132[2]
Upper Lough Erne	Northern Ireland	13.3	34.5[5]	< 0.35	19[7]	< 60[7]	2.3[5]
Loch Awe	Scotland	14.85	39	1.2	41	94	32[9]
Loch Maree	Scotland	11.03	28.6	1.09	20	114	38[10]
Loch Morar	Scotland	10.3	27	2.3	18.8	310	87[11]
Loch Tay	Scotland	10.19	26.4	1.6	23	150	60.6[12]
Loch Shin	Scotland	8.7	22.5	0.35	27.8	49	15.5[13]

Largest lakes in England

Lake	Area (sq mi)
Windermere	5.69
Ullswater	3.44
Bassenthwaite Lake	2.06
Derwent Water	2.06

Largest (natural) lakes in Wales

Lake	Area (sq mi)
Llyn Tegid	1.87
Llangorse Lake	0.59
Llyn Cowlyd	0.42
Llyn Padarn	0.38
Tal-y-llyn lake	0.34
Llyn Cwellyn	0.34
Llyn Llywenan	0.20
Kenfig Pool	0.11

Largest reservoirs in the United Kingdom

Lake	Area (sq mi)	Location
Rutland Water	4.86	England
Kielder Water	4.25	England
Lake Vyrnwy	3.18	Wales
Pitsford Water	2.85	England
Grafham Water	2.85	England
Chew Valley Lake	1.88	England
Trawsfynydd	1.84	Wales
Llyn Clywedog	1.55	Wales
Carron Valley	1.51	Scotland
Haweswater	1.50	England
Derwent Reservoir	1.44	England
Llyn Brenig	1.44	Wales
Thirlmere	1.25	England
Llyn Celyn	1.25	Wales
Llyn Alaw	1.21	Wales

See also

• List of lakes in England
• List of loughs in Ireland
• List of lochs in Scotland
• List of lakes in Wales
• List of lakes in the Lake District
• Geography of the United Kingdom
• Waterscape

Notes

1. "Botanical survey of Scottish freshwater lochs" SNH Information and Advisory Note Number 4. Retrieved 1 January 2010.
2. Murray and Pullar (1910) "Lochs of the Ness Basin" Pages 381-85, Volume II, Part II. National Library of Scotland. Retrieved 2 January 2010.
3. Source for all quantities is the same unless otherwise stated.
4. "Lough Neagh" discoverireland.com. Retrieved 2 January 2010.
5. "ECN Sites: Lough Erne" Environmental Change Network. Retrieved 2 January 2010.
6. Gibson, C.E.; Foy, R.H.; and McNally, J. (2005) "Stratification and Oxygen Depletion in Lower Lough Erne 1991-2000" Proceedings of the Royal Irish Academy. 105 No. 2, pp. 81-86.
7. "Lough Erne" Encyclopædia Britannica. Retrieved 2 January 2010.
8. Murray and Pullar (1910) "Lochs of the Clyde Basin" Page 262, Volume II, Part II. National Library of Scotland. Retrieved 2 January 2010.
9. Murray and Pullar (1910) "Lochs of the Etive Basin" Page 270, Volume II, Part II. National Library of Scotland. Retrieved 2 January 2010.
10. Murray and Pullar (1910) "Lochs of the Ewe Basin" Page 211, Volume II, Part II. National Library of Scotland. Retrieved 2 January 2010.
11. Murray and Pullar (1910) "Lochs of the Morar Basin" Page 197, Volume II, Part II. National Library of Scotland. Retrieved 2 January 2010.
12. Murray and Pullar (1910) "Lochs of the Tay Basin" Page 80, Volume II, Part II. National Library of Scotland. Retrieved 2 January 2010.
13. Murray and Pullar (1910) "Lochs of the Naver Basin" Pages 293-94, Volume II, Part II. National Library of Scotland. Retrieved 2 January 2010.

References

• Murray, Sir John and Pullar, Laurence (1910) Bathymetrical Survey of the Fresh-Water Lochs of Scotland, 1897-1909. London; Challenger Office.