The Flag of Dorset is the flag of the English county of Dorset. The 'Dorset Cross' was chosen as the flag of Dorset on 16 September 2008 following a public vote, open to all Dorset residents, and organised by Dorset County Council. The unitary authorities of Bournemouth (historically part of Hampshire) and Poole declined an invitation to participate. The flag has subsequently been registered at the Flag Institute and added to their UK Flags Register.
The Dorset flag is made of three colours - red (pantone 186), white and gold (pantone 116). These colours are found in the arms of Dorset County Council. The gold represents several things related to Dorset: Wessex; the ancient Anglo-Saxon kingdom, Dorset's agriculture, Dorset's sandy beaches, Golden Cap, the highest point on the Jurassic Coast and Gold Hill, the nationally famous street in Shaftesbury. The Dorset militia and regiment used the colours gold, red and green. The flag also recognises St. Wite, a female Dorset saint who is buried at Whitchurch Canonicorum. An Anglo-Saxon holy woman, she was thought to have been martyred by invading Danes in the 9th century.
The flag has been variously known as "The Dorset Cross", "St Wite's Cross" or simply "The Dorset Flag". The creators express a preference to "The Dorset Cross", due to its more secular nature.