Trentabank Reservoir

Infobox lake
lake_name = Trentabank Reservoir
image_lake = Macclesfield Forest+Trentabank.jpg
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location = Macclesfield Forest, Cheshire
coords = coord|53|14|20|N|2|3|27|W|type:waterbody_region:GB|display=inline,title
type = reservoir
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basin_countries = United Kingdom
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area = convert|23|acre|abbr=on
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Trentabank Reservoir is located within Macclesfield Forest, partly in the Peak District National Park in England, and is home to rich-unimproved uplands and grasslands. The reservoir is surrounded mainly by coniferous plantations and is also home to about 22 pairs of herons.

Trentabank is the uppermost of four reservoirs which collect water from the hills at the head of the River Bollin and water from Trentabank and Ridgegate supplies Macclesfield with the town's drinking water. The other two reservoirs are Bottoms reservoir and Teggs Nose reservoir.

Areas of the reservoir have been setup as nature reserve to protect the large number of heron living in this area and this, along with its easy of accessibility, make Trentabank one of the most visited reservoirs under the control of the Cheshire Wildlife Trust. However, access to the reservoir is limited to a small area because of the nature reserve.

The reservoir occupies some 23 acres (9 ha) with the reserve covering a further 24 acres (10 ha).