High Glanau (also known as High Glanau Manor) is a country house and Grade II* listed building within the community of Cwmcarvan, Monmouthshire, Wales. It is located about 5 miles (8.0 km) south-west of Monmouth, and 1.5 miles (2.4 km) north of Trellech, adjoining the B4293 road and with views westwards over the Vale of Usk. Commissioned by Henry Avray Tipping and designed by Eric Francis, it is particularly noted for its gardens.