William Kennedy Jackson (24 December 1900 – 9 February 1986) was a Scottish professional football defender who played for clubs including Vale of Leven, Wrexham and Aberdeen. Jackson began his career at Vale of Leven, with his form there earning him a move to England with Everton in March 1922; however he made little impact and moved on to Wrexham six months later, where he won the Welsh Cup in 1924. He reverted to Vale of Leven (by now reduced in status to an amateur team) for a third spell before being invited back to the SFL with Forfar Athletic.