William Jackson (8 August 1918 – 26 November 1985) was an Irish basketball and GAA player. Jackson was a member of the 1943 & 1944 Roscommon All-Ireland winning teams. In 1943 they defeated Cavan with Bill "Stonewall" Jackson at left full back in a replay by a score of 2-7 - 2-2. Jackson was regarded as one of the soundest corner backs of the era. The following year the Connacht side beat Kerry 1-9 to 2-4 with Jackson lining out at right full back. Kerry were to enact revenge in the 1946 All-Ireland final in a replay.