The Looe Estuary (grid reference SX255535) is an estuary in the southeastern part of Cornwall in south-west England, which leads to the mouth of the River Looe in Looe Bay.
The town of Looe sits on the west and east side of the estuary.
Coordinates: 50°21′20″N 4°27′16″W / 50.35548°N 4.45442°W