William Garden Blaikie FRSE (5 February 1820, in Aberdeen – 11 June 1899) was a Scottish minister, writer, biographer, and temperance reformer.

The Disruption of 1843 reached its climax immediately afterwards, and Blaikie was one of the 474 ministers who signed the deed of demission and gave up their livings.

Keenly interested in questions of social reform, his first publication was a pamphlet, which was afterwards enlarged into a book called Better Days for Working People.

He formed an association for providing better homes for working people, and the Pilrig Model Buildings were erected.

He prolonged his visit, made by a similar tour in Europe, and became the real founder of the Presbyterian Alliance.

He is buried in Rosebank Cemetery on Pilrig Street, Edinburgh, against the central north-facing retaining wall.