Alexander Andrew McGillivray KC (February 11, 1884 – December 12, 1940) was a lawyer and provincial level politician from Alberta, Canada.

[2] After failing to win a seat, McGillivray moved to Calgary and started a law firm with Thomas Tweedie.

He later became Crown Prosecutor, King's Counsellor in 1919, and led the prosecution of Emilio Picariello and Florence Lassandro for murder of Alberta Provincial Police Constable Stephen O. Lawson.

[3] McGillivray would continue to serve as a Crown Prosecutor until he was elected leader of the Alberta Conservative Party in 1925.

[3][6] The Toronto Mail hailed McGillivray as one of the most brilliant practicing barristers in Western Canada.