Several sailing ships have been named William and Ann:
William and Ann, a 20-gun hired vessel of the Royal Navy mentioned in 1757.
William and Ann (1759), a 370-ton merchantman, convict and whale ship.
William and Ann, an armed ship mentioned in 1759.
William and Ann, a brig recaptured in 1777.
William and Ann, a gun boat mentioned in 1795.
William and Ann, a 77-ton sloop mentioned in 1814.
William and Ann, a Whitby whaler wrecked in ice in 1830.
William and Ann, a 38-ton merchant ship mentioned in 1875.