Deepest lakes & reservoirs in Northern Ireland Region, United Kingdom by maximum depth (ft)
The estimated greatest depth of the water in a lake can be measured at the lake’s normal elevation. If the water volume and surface area of a lake are known, an estimate of the lake’s average depth can be calculated:Water volume ÷ Surface Area = Average Depth
Example: 1,000,000 acre-feet ÷ 20,000 acres = 50 feet average depth.
You can find many of the the world’s deepest lakes on LakeLubbers. If you sort the list, you will find the (maximum depth of) the shallowest lakes in our database. Note: For some lakes, lake depth data is unknown, so this table may display fewer lakes than the total 7 articles we have published for Northern Ireland Region, United Kingdom lakes.
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Below are lakes within United Kingdom > Northern Ireland Region, United Kingdom > Compared by maximum depth in feet. This list does not represent all lakes in Northern Ireland Region, United Kingdom, only the 7 Northern Ireland Region, United Kingdom lake articles we have published on the LakeLubbers website.
Lake name  |
Max depth in feet |
Lake description |
|---|---|---|
| Lower Lough Erne (Fermanagh Region, Northern Ireland, Northern Ireland Region, United Kingdom, United Kingdom) |
226 ft | Also known as Lower Lake Erne, Lake Earne Lower Lough (Lake) Erne is one of several lakes on the beautiful River Erne in County Fermanagh, Northern Ireland. The River Erne begins in County Cav… |
| Strangford Lough (Down Region, Northern Ireland, Northern Ireland Region, United Kingdom, United Kingdom) |
216 ft | 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… |
| Upper Lough Erne (Fermanagh Region, Northern Ireland, Northern Ireland Region, United Kingdom, United Kingdom) |
89 ft | Also known as Upper Lake Erne Upper Lough Erne is a sparkling 8,525-acre lake on the scenic River Erne in County Fermanagh, Northern Ireland. The River Erne begins in County Cavan… |
| Lough Neagh (Antrim Region, Northern Ireland, Northern Ireland Region, United Kingdom, United Kingdom) |
80 ft | 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… |
| Lough MacNean (Fermanagh Region, Northern Ireland, Ireland, North West Region, Ireland, Northern Ireland Region, United Kingdom, United Kingdom) |
70 ft | Also known as Upper Lough MacNean, Lower Lough MacNean Lough MacNean, a freshwater lake (lough) surrounded by picturesque scenery, is often referred to by Upper Lough MacNean and Lower Lough MacNean. This… |
| Lough Foyle (Ireland, Londonderry Region, Northern Ireland, North West Region, Ireland, Northern Ireland Region, United Kingdom, United Kingdom) |
49 ft | Also known as Loch Feabhail Standing on the stoop of his holiday cottage looking out over the water of Lough Foyle, he was struck by how closely the 44,000 acre estuary matched h… |