The ruin of Tabley Old Hall (more properly known as Nether Tabley Old Hall) is on an island surrounded by a moat in the civil parish of Tabley Inferior, about 1.5 miles (2.4 km) to the west of Knutsford, Cheshire, England. The ruin is recorded in the National Heritage List for England as a designated Grade II* listed building, and the moated site on which it stands is a scheduled monument.