Alexander (or Alec) Douglas McGill KC (2 January 1886 – 6 July 1952) was a lawyer in Brisbane, Australia.
He then won a Lewis Thomas Exhibition, which took him to Sydney University, where he studied Law.
He was called to the Queensland Bar in June 1911 and in 1934 was appointed a King's Counsel.
McGill married Eva Minnie Grace Hardwicke, of Graceville, Brisbane, on 26 September 1914.
Their children included They had a home "Rankeillour" on Feez Street, Yeronga, Queensland.