John Alexander MacPherson (15 October 1833 – 17 February 1894),[1] Australian colonial politician, was the 7th Premier of Victoria.

He came to the Port Phillip District as a child with his family and was educated at Scotch College, Melbourne and the University of Edinburgh, where he graduated in law.

He was admitted to the Victorian bar in 1866 and practised law before becoming a pastoralist near Hamilton in the Western District.

MacPherson was elected as a conservative to the Legislative Assembly for Portland in November 1864,[2] and for Dundas in February 1866.

MacPherson served as Chief Secretary in the third McCulloch government in 1875 to 1877, before retiring from politics in July 1878,[1] still aged only 44.