Inchiquin Lough (Irish: Loch Inse Uí Chuinn) is a freshwater lake in County Clare, located in the Burren region of Ireland's Mid-West, approximately 15 km north of Ennis near the village of Corofin. The lake measures roughly 1.6 km long and 1.3 km wide, covering a surface area of about 1.08 km², with a maximum depth of 25 m. It lies along the River Fergus, which serves as both its primary inflow and outflow, and sits at an elevation of 19 m. The lake is part of the East Burren Complex Special Area of Conservation.

The paddling character is calm and accessible, making it suitable for paddlers of varying experience levels, including families with children as young as six. The shoreline transitions between reed-fringed edges, marsh areas, agricultural land, and two small islands that can be circumnavigated. The lake connects to the River Fergus, allowing paddlers to extend trips upstream into the river corridor, where additional wildlife and ruins can be found along the banks.

The most prominent landmark is the ruin of Inchiquin Castle, originally built in the 14th or 15th century, which stands near the northern shore. The ruins include a banquet hall with three fireplaces, windows overlooking the lake, and a spiral staircase in the tower. The castle is accessible only by water, making it a natural stopping point during a paddle. A ruined abbey on the opposite shore from the main car park is similarly boat-access only.

Wildlife on the lake includes white-tailed eagles, kingfishers, grey herons, white and black swans, and mallard ducks, among other waterfowl and waders. Guided kayak tours are available seasonally through North Clare Sea Kayaking, which operates an "Enchanted Lake & River Tour" combining the lake and the Fergus River. Boat hire is also available from local providers in Corofin village.

The lake is a well-established angling destination for brown trout and pike, so paddlers should be aware of fishing activity, particularly along the southern shoreline where bank fishing access is provided via stiles. The Corofin Angling Centre, managed by Inland Fisheries Ireland, oversees angling on the lake and surrounding river system.