William Mackay Mackenzie

William Mackay Mackenzie HRSA FSA Scot (1871–1952) was a Scottish historian, archaeologist and writer, who was Secretary of the Royal Commission on Ancient and Historical Monuments of Scotland between 1913 and 1935, and also an expert on folk-lore.

In 1925-1926 he was Rhind lecturer in archaeology at the University of Edinburgh and during the Second World War acted as head of the department of Ancient Scottish History.

He was a Fellow of the Society of Antiquaries of London (FSA)[citation needed] and was made an honorary Doctor of Laws in 1949 at Edinburgh.

His younger brother, Donald Alexander Mackenzie, was also a prolific writer on religion, mythology and anthropology.

A portrait of Mackenzie by David Foggie, painted in 1914, is held by the National Gallery of Scotland but is rarely displayed.