Holy Vale (Cornish: Hal an Val)^[1] is a minor valley and small settlement within, on the island of St Mary's, the largest of the Isles of Scilly, England. Situated inland, nearby are Maypole and Longstone.^[2]

Holy Vale Cornish: Hal an Val
The signpost at the centre of Holy Vale
Holy Vale Location within Isles of Scilly
Civil parish	St Mary's
Unitary authority	Isles of Scilly
Ceremonial county	Cornwall
Region	South West
Country	England
Sovereign state	United Kingdom
Post town	ISLES OF SCILLY
Postcode district	TR21
Dialling code	01720
Police	Devon and Cornwall
Fire	Isles of Scilly
Ambulance	South Western
UK Parliament	St Ives
List of places UK England Cornwall 49°55′28″N 6°17′33″W / 49.9245°N 6.2925°W / 49.9245; -6.2925

The name Holy Vale was originally La Val in 1301, it comes from the Norman French for low lying, at the foot.^[3]

The settlement of Holy Vale lies in the upper part of the valley, which leads down to the Higher Moors and Porth Hellick on the southeast coast of the island. The centre of the settlement, where there is a small junction and a signpost, is at an elevation of 12 metres (39 ft) above sea level.^[2]

It was the scene of the murder of 18-year-old Stephen Menheniott by his father in 1976.

The only commercial vineyard on St Mary's is centred in Holy Vale, with the vines located in several small fields in the area.^[4]