Royal Air Force Upavon, or more simply RAF Upavon, is a former Royal Air Force station in Wiltshire, England. It was a grass airfield, military flight training school, and administrative headquarters of the Royal Air Force. The station opened in 1912 and closed in 1993, when it was transferred to the British Army and became known as Trenchard Lines.

Wiltshire is a ceremonial county in South West England. It borders Gloucestershire to the north, Oxfordshire to the north-east, Berkshire to the east, Hampshire to the south-east, Dorset to the south, and Somerset to the west. The largest settlement is Swindon, and Trowbridge is the county town.