List of dams and reservoirs in the United Kingdom

• Bosley Reservoir, Bosley
• Lamaload Reservoir, east of Macclesfield

Lymm Dam, Lymm.

• and Trentabank Reservoir, south-east of Macclesfield
• , south of Macclesfield

• , Falmouth
• , Penzance
• , St Ives
• Colliford Lake, Bodmin Moor
• Crowdy Reservoir, Bodmin Moor
• Drift Reservoir, Penzance
• Porth Reservoir, Newquay
• Siblyback Lake, Bodmin Moor
• Stithians Reservoir
• Upper Tamar Lake (Devon and Cornwall)

• Balderhead Reservoir
• Blackton Reservoir
• Burnhope Reservoir
• Derwent Reservoir
• Grassholme Reservoir
• Hisehope Reservoir
• Hury Reservoir
• Selset Reservoir
• Smiddy Shaw Reservoir
• Tunstall Reservoir
• Waskerley Reservoir

• , north of Windermere (town)
• Chapelhouse Reservoir, south-east of Uldale
• Cow Green Reservoir east of
• , north of Windermere (town)
• Ennerdale Water
• east of Kendal
• , , west of the town of Ulverston
• Haweswater Reservoir
• Hayeswater
• Kentmere Reservoir
• Killington Reservoir
• , by Flat Fell, Ennerdale, Cumbria
• Simpson Ground Reservoir, east of Newby Bridge
• Thirlmere
• Wet Sleddale Reservoir

• Butterley Reservoir
• Carsington Water
• Combs Reservoir
• Errwood Reservoir
• Fernilee Reservoir
• Foremark Reservoir
• Hurst Reservoir
• Kinder Reservoir
• Linacre Reservoirs
  • Upper Reservoir
  • Middle Reservoir
  • Lower Reservoir
• Longdendale Chain of reservoirs
  • Arnfield Reservoir
  • Hollingworth Reservoir now drained and a nature reserve
  • Bottoms Reservoir
  • Valehouse Reservoir
  • Rhodeswood Reservoir
  • Torside Reservoir
  • Woodhead Reservoir
• Mossy Lea Reservoir
• Ogston Reservoir
• Staunton Harold Reservoir
• Swineshaw Reservoir (Derbyshire)
• Toddbrook Reservoir
• Upper Derwent Valley
  • Ladybower Reservoir
  • Derwent Reservoir with Birchinlee
  • Howden Reservoir Eastern half is in Sheffield (South Yorkshire)
• Upper Swineshaw Reservoir (Derbyshire)

• Avon Dam Reservoir
• Burrator Reservoir
• Butter Brook Reservoir
• Fernworthy Reservoir
• Kennick Reservoir
• Lower Tamar Lake
• Meldon Reservoir
• Roadford Lake
• Slade Reservoir
• Tottiford Reservoir
• Trenchford Reservoir
• Upper Tamar Lake (Devon and Cornwall)
• Venford Reservoir
• Wistlandpound Reservoir

• Bolton:
  • Belmont Reservoir
  • Dean Mills Reservoir
  • High Rid Reservoir
  • Lower Rivington Reservoir
  • Rumworth Lodge Reservoir
  • Upper Rivington Reservoir
• Bury
  • Manchester, Bolton and Bury Reservoir (Elton Reservoir)
• Manchester:
  • Gorton Reservoirs
  • Heaton Park Reservoir
• Oldham:
  • Ashworth Moor Reservoir
  • Brushes Clough Reservoir
  • Chew_Reservoir
  • Dovestones Reservoir
  • Greenfield Reservoir
  • Strinesdale Reservoir
  • Yeoman Hey Reservoir
• Rochdale:
  • Ashworth Moor Reservoir
  • Blackstone Edge Reservoir
  • Greenbooth Reservoir
  • Hanging Lees Reservoir
  • Hollingworth Lake
  • Kitcliffe Reservoir
  • (Higher, Middle and Lower)
  • Norman Hill Reservoir
  • Ogden Reservoir
  • Piethorne Reservoir
  • Rooden Reservoir
  • Watergrove Reservoir
• Tameside:
  • Audenshaw Reservoirs
  • Brushes Reservoir
  • Denton Reservoirs
  • Godley Reservoir
  • Higher Swineshaw Reservoir
  • Lower Swineshaw Reservoir
  • Swineshaw Reservoirs
  • Walkerwood Reservoir
• Wigan:
  • Worthington Lakes

• Anglezarke Reservoir
• Belmont Reservoir
• Black Moss Reservoirs
• Calf Hey Reservoir
• Dingle Reservoir
• High Bullough Reservoir
• Holden Wood Reservoir
• Jumbles Reservoir
• Lower Rivington Reservoir
• Lower Roddlesworth Reservoir
• Lower Ogden Reservoir
• Rake Brook Reservoir
• Stocks Reservoir
• Turton and Entwistle Reservoir
• Upper Ogden Reservoir
• Upper Rivington Reservoir
• Upper Roddlesworth Reservoir
• Ward's Reservoir (Blue Lagoon)
• Watersheddles Reservoir (owned by Yorkshire Water)
• Wayoh Reservoir
• Yarrow Reservoir

• Blackbrook Reservoir
• Eyebrook Reservoir (Corby)
• Cropston Reservoir
• Nanpantan Reservoir
• Saddington Reservoir
• Staunton Harold Reservoir
• Swithland Reservoir
• Thornton Reservoir

• Brent Reservoir (also known as the Welsh Harp)
• Stain Hill Reservoirs
• Sunnyside Reservoir

The following reservoirs form the Lee Valley Reservoir Chain.

• King George's Reservoir, London Borough of Enfield (also known as King George V Reservoir)
• William Girling Reservoir, London Borough of Enfield
• Banbury Reservoir, London Borough of Waltham Forest
• Lockwood Reservoir, London Borough of Waltham Forest
• High Maynard Reservoir, London Borough of Waltham Forest
• Low Maynard Reservoir, London Borough of Waltham Forest
• Walthamstow Reservoirs, London Borough of Waltham Forest, five linked numbered reservoirs
• East Warwick Reservoir, London Borough of Waltham Forest
• West Warwick Reservoir, London Borough of Waltham Forest

• Barby Storage Reservoir
• , Oxford canal supply reservoir, Upper Boddington^[1]
• (Kettering)
• Daventry Reservoir in Daventry Country Park
• Drayton Reservoir (Daventry)
• Hollowell
• , Grand Union Canal supply, Naseby^[2]
• Pitsford Water
• Ravensthorpe Reservoir
• Stanford Reservoir, between Stanford-on-Avon and South Kilworth
• Sulby Reservoir
• Sywell Reservoir
• Thorpe Malsor Reservoir (Kettering)
• Welford Reservoir

• Bakethin Reservoir
• Catcleugh Reservoir
• Colt Crag Reservoir
• Fontburn
• Hallington Reservoirs
• Little Swinburne Reservoir
• Kielder Water
• Whittle Dene

• Angram Reservoir
• Beaver Dyke Reservoirs
• Chelker Reservoir
• Cod Beck Reservoir
• Embsay Reservoir
• Fewston Reservoir
• Gouthwaite Reservoir
• Grimwith Reservoir
• Leighton Reservoir
• Lindley Wood Reservoir
• Roundhill Reservoir
• Scaling Dam Reservoir
• Scar House Reservoir
• Swinsty Reservoir
• Thornton Steward Reservoir
• Thruscross Reservoir
• Upper Barden Reservoir
• Winterburn Reservoir

• Ashford Reservoir
• Barrow Gurney Tanks
• Blagdon Lake
• Chard Reservoir
• Cheddar Reservoir
• Chew Valley Lake
• Clatworthy Reservoir
• Durleigh reservoir
• Hawkridge Reservoir
• Leigh Reservoir
• Litton Reservoirs
• Luxhay Reservoir
• Nutscale Reservoir
• Otterhead Lakes
• Sutton Bingham Reservoir
• Wimbleball Lake

• Agden Reservoir
• Broomhead Reservoir
• Dale Dyke Reservoir
• Damflask Reservoir
• , feeder for the Chesterfield canal^[4]
• Howden Reservoir Western half is in Derbyshire
• Langsett Reservoir
• More Hall Reservoir
• (Sheffield)
• Redmires Reservoirs
• Rivelin Dams
• Strines Reservoir
• Ulley Reservoir
• Winscar Reservoir

• Bathpool Park Lake
• Belvide Reservoir
• Blithfield Reservoir
• Chasewater
• Gailey Reservoir
• Knypersley Reservoir
• Minster Pool
• Rudyard Lake
• Stowe Pool
• Tittesworth Reservoir

• Bessborough Reservoir
• Island Barn Reservoir
• King George VI Reservoir
• Knight Reservoir
• Molesey Reservoirs
• Queen Elizabeth II Reservoir
• Queen Mary Reservoir
• Queen Mother Reservoir
• Staines Reservoirs
• Wraysbury Reservoir

• Draycote Water
• , Grand Union Canal^[5]
• , Grand Union Canal
• , Grand Union Canal

• Bartley Reservoir (Birmingham)
• Brookvale Park Lake (Birmingham)
• Edgbaston Reservoir (Birmingham)
• Frankley Reservoir (Birmingham)
• Lifford Reservoir (Birmingham)
• Netherton Reservoir, Dudley
• Olton Reservoir, Solihull
• Perry Barr Reservoir (covered) (Birmingham)
• Witton Lakes (Birmingham)
• see also Elan Valley Reservoirs (Wales) which were built by, and supply, Birmingham

• Baitings Reservoir
• Bilberry Reservoir
• Black Moss Reservoir
• Booth Wood Reservoir
• Chelker Reservoir
• Digley Reservoir
• Eccup Reservoir
• Lower Laithe Reservoir
• Ogden Reservoir
• Ponden Reservoir
• Ryburn Reservoir
• Scammonden Reservoir
• Walshaw Dean Reservoirs
• (Mostly in West Yorkshire, partly in Greater Manchester)
• Warley Moor Reservoir
• Wessenden Reservoir
• Wessenden Head Reservoir

• - Cults
• Loch of Aboyne
• aka

• Backwater Reservoir
• or Auchintaple Loch
• Loch Lee

• Allt na Lairige - Glen Fyne
• Ardlussa Fishing Loch - Isle of Jura
• Asgog Loch - Tighnabruaich
• Aucha Lochy - Campbeltown
• Auchengaich Reservoir - Glen Fruin
• Beochlich - 9 km NW of Inveraray
• Bishop's Glen Reservoir (also known as Dunoon Reservoir) - Dunoon
• Blackmill Loch - Minard
• Cam Loch - North Knapdale
• Craignafeich Reservoirs - Tighnabruaich
• Crarae Reservoir - Minard
• Crosshill Loch - Campbeltown
• Cruachan Reservoir - Loch Awe
• Daill Loch - North Knapdale
• Dhu Loch - Bute
• Feorlin - Minard
• Gleann Dubh - Barcaldine
• Gleann Loch - North Knapdale
• Helensburgh No. 1 Reservoir - Helensburgh
• Helensburgh No. 2 Reservoir - Helensburgh
• Kilduskland Reservoir - Ardrishaig
• Kirk Dam - Bute
• Knockruan Loch - Campbeltown
• Leorin Loch - Port Ellen, Islay
• Lindowan Reservoir - Kilcreggan
• Loch A' Bharain - North Knapdale
• Loch A' Chaorainn - South Knapdale
• - Port Askaig, Islay
• - North Knapdale
• - North Knapdale
• - Kilchrenan
• Loch an Sgoltaire - Isle of Colonsay
• - Dervaig, Isle of Mull
• Loch Ascog - Isle of Bute
• - Bunessan, Isle of Mull
• Loch Awe - part of the Awe hydroelectric scheme
• Loch Ba - Gruline, Isle of Mull
• - Lochdon, Isle of Mull
• - Port Ellen, Islay
• - Bridgend, Isle of Islay
• - South Knapdale
• - Clachan, North Kintyre
• - North Knapdale
• Loch Eck - Cowal
• Loch Fad - Bute
• - 4 km SW Luss
• - Port Charlotte, Islay
• - Lochgair, Mid-Argyll
• - Oban
• - Port Ellen, Islay
• - Furnace
• - North Knapdale
• - North Knapdale
• - North Knapdale
• - North Knapdale
• - North Knapdale
• - 9 km NE of Kilmelford
• - Port Askaig, Islay
• - North Knapdale
• - South Knapdale
• - Inveraray
• - Bridgend, Isle of Islay
• - 6 km N of Arrochar
• Loch Tarsan - Glen Lean, Cowal
• - Kilmelford
• - Isle of Colonsay
• - Port Ellen, Islay
• - Tobermory, Isle of Mull
• - North Knapdale
• - Garelochhead
• - Isle of Jura
• - Kilmelford
• - 12 km NE of Inveraray
• - Oban
• - 13 km NE of Inveraray
• - Tobermory, Isle of Mull
• - Kilchrenan
• - Kilmelford
• - Tighnabruaich
• - Port Ellen, Islay
• - Ardrishaig
• - Campbeltown

• Clatteringshaws Loch

• Rouken Glen Pond
• Craighall Reservoir
• (on the border with East Ayrshire)
• (on the border with Renfrewshire)
• (at the dye works)

• Harlaw Reservoir
• Threipmuir Reservoir
• Bonaly Reservoir

• Cameron Reservoir

• Blackwater Reservoir, near Kinlochleven
• Loch Laggan and Loch Treig - both part of the Lochaber hydroelectric scheme
• Loch Monar - part of the Strathfarrar hydroelectric scheme
• Loch Quoich and Loch Garry - both part of the Glen Garry hydroelectric scheme
• Loch Loyne and Loch Cluanie - both part of the Glen Moriston hydroelectric scheme
• Loch Mullardoch - part of the Glen Affric hydroelectric scheme
• Loch Glascarnoch

• Edgelaw Reservoir
• Gladhouse Reservoir
• Glencorse Reservoir
• Loganlea Reservoir

• Daer
• Hillend Loch
• Strathclyde Park

• Dunalastair Water
• Loch Tummel - part of the Tummel Valley hydroelectric scheme
• Loch Turret Reservoir and Glenturret Dam. Near Crieff

• Alemoor Loch
• Baddinsgill Reservoir
• Fruid Reservoir
• Megget Reservoir
• Talla Reservoir
• Westwater Reservoir

• (on the border with Stirling)
• (on the border with Stirling)

• Llyn Bodgynydd - supply for the Pandora lead mine (disused)
• Llyn Brenig - part of Dee Regulation system - also in Denbighshire
• Llyn Coedty - water supply for Dolgarrog hydroelectric station
• Llyn Conwy - water supply for Llanrwst and Betws-y-Coed
• Llyn Cowlyd - water supply for Conwy and Colwyn Bay and for Dolgarrog hydroelectric station
• Llyn Crafnant - water supply for Llanrwst
• Llyn Dulyn - water supply for Llandudno
• Llyn Melynllyn - water supply for Llandudno
• Llyn Parc - supply for the Aberllyn mine (disused)
• Llyn Elsi - water supply for Betws-y-Coed (disused)

• Alwen Reservoir
• Llyn Aled
• Llyn Alwen
• Llyn Brenig - part of the River Dee regulation system
• Llyn Celyn - part of the River Dee regulation system.
• Pendinas Reservoir
• Llyn Tegid (Bala Lake)
• Nant-y-Ffrith Reservoir

• - water supply for Llanfairfechan, Dwygyfylchi and Penmaenmawr
• Llyn Arenig Fawr - water supply for Bala town
• - supply to Llechwedd slate quarry
• Llyn Bodlyn - water supply to Barmouth.
• - supply to the Blaenau Ffestiniog slate quarries
• - supply for Rhosydd slate quarry (disused)
• Llyn Cwellyn - water supply to Bangor and parts of south Anglesey
• Marchlyn Mawr - header reservoir for the Dinorwig power station hydroelectric system.
• Llyn Peris
• Llyn Padarn - part of the Dinorwig hydroelectric system
• - built for the hydroelectric Ffestiniog Power Station
• Llyn Trawsfynydd - built for the Maentwrog hydroelectric Power Station

• - a chain of three reservoirs supplying the Rhondda and Taff valley and Cardiff with water
  • Beacons Reservoir
  • Cantref Reservoir
  • also see Llwyn-on Reservoir in Merthyr Tydfil
• - a chain of four reservoirs also supplying the Taff valley and Cardiff with water
  • Upper Neuadd Reservoir
  • Lower Neuadd Reservoir
  • Pontsticill Reservoir
• Elan Valley Reservoirs - a group of reservoirs supplying Birmingham and parts of the West Midlands conurbation with drinking water
  • Claerwen Reservoir
• Lake Vyrnwy (Llyn Efyrnwy) - supplies water to the Liverpool area
• Talybont Reservoir
• Ystradfellte Reservoir
• Llyn Clywedog