The regiment can trace its history back to 4 June 1794, a meeting of country gentlemen at the Bear Inn in Devizes decided to raise a body of ten independent troops of Yeomanry for the county of Wiltshire, which became the Royal Wiltshire Yeomanry. The Wessex Yeomanry was formed on 1 April 1971 by re-raising cadres from the Royal Wiltshire Yeomanry, the Royal Gloucestershire Hussars and the Royal Devon Yeomanry to form four squadrons. The Wessex Yeomanry was granted its royal title, becoming the Royal Wessex Yeomanry, on 8 June 1979. Initially roled as infantry, in the 1980s it was re-roled as a reconnaissance regiment and became one of the Military Home Defence Reconnaissance Regiments. Following the Strategic Defence Review, the regiment merged with the Dorset Yeomanry in July 1999 and was reorganised and re-roled into its current ORBAT.