John Gillan (c.1667–1735) was a Scottish Episcopal clergyman and author who served as the Bishop of Dunblane from 1731 to 1735.

[1] After his education at Marischal College, Aberdeen, he worked as a bookseller.

[1] He published Vindication of the Fundamental Character of Presbytery (1713), Life of Bishop Sage (1714), and is reputed to be the author of Carnwath's Memoirs.

[1][2] He was ordained in the Scottish Episcopal Church, and not long afterwards consecrated at Edinburgh a college bishop on 22 June 1727 by bishops Freebairn, Duncan, Rose and Ochterlony.

[1][3] Gillan was the Incumbent of Old Saint Paul's, Edinburgh (1727–35) and elected Bishop of the Diocese of Dunblane in December 1731.