George Stack KC*HS CStJ (born 9 May 1946) is a prelate of the Roman Catholic Church.

Between 1974 and 1977, Stack pursued a Bachelor of Education degree at St Mary's University College, Twickenham.

He then became curate at St Paul's, Wood Green, and in 1983 was appointed Parish Priest of Our Lady, Help of Christians in Kentish Town.

[2] Archbishop Stack is the Sub-Prior of the Sacred Military Constantinian Order of St George within the Delegation of Great Britain and Ireland.

As of 2013[update], Stack was the 'member bishop' representing England and Wales on ICEL (International Commission on English in the Liturgy).