Donald Mackintosh (10 October 1876[1] – 8 December 1943) was a Scottish clergyman who served as the Roman Catholic Archbishop of Glasgow from 1922 to 1943.

Mackintosh became rector of the College in 1913,[3] and was made a Domestic Prelate the following year.

Mackintosh was appointed Archbishop of the Metropolitan see of Glasgow on 24 February 1922 and consecrated to the Episcopate on 21 May 1922.

His principal consecrator was Cardinal Gaetano de Lai, Secretary of the Sacred Consistorial Congregation, and the principal co-consecrators were Henry Gray Graham, Auxiliary Bishop of Saint Andrews and Edinburgh and Donald Martin, Bishop of Argyll and The Isles.

[4] According to Thomas Gerard Gallagher, by 1940, "Archbishop Mackintosh was a chronic invalid who was unable to get around his archdiocese or properly supervise its activities.