The flag of Kent is the flag of the English county of Kent. It features the white horse of Kent on a red background, a theme used in several other Kent-related coats of arms and logos or symbols. It is sometimes referred to as the Invicta Flag or Invicta Flag of Kent, after the motto of Kent, Invicta.^[1]

The flag is an adaptation of what was thought to be the traditional arms of Kent as popularised by Richard Verstegen's 1605 work, A Restitution of Decayed Intelligence. These arms were attributed anachronistically to the Kingdom of Kent, but used by the Justices of Kent for many years.^{[citation needed]} The design didn't catch on as a symbol of the modern county of Kent until the mid-18th century and didn't appear in flag form until the 19th century.^[2] The arms were officially granted to Kent County Council on 17 October 1933 (and re-confirmed to its successor in 1975). The flag was accepted by the Flag Institute as that of the historic county on the basis of its traditional use.^[3]

• List of flags of the United Kingdom
• List of English flags
• Twente