The Right Reverend Stephen McGill PSS (born Glasgow 4 January 1912; died Glasgow 9 November 2005) was the sixth Bishop of Argyll and the Isles and second Bishop of Paisley.
Stephen McGill was born on 4 January 1912 to Peter McGill and Charlotte Connolly in Glasgow, Scotland where he was educated at Holy Cross primary school and St Aloysius' College before entering the national junior seminary at St Mary's College, Blairs, Aberdeen.
In October 1931 he entered Le Grand Séminaire at Coutances in France and was ordained priest of the Archdiocese of Glasgow at St Andrew's Cathedral, Glasgow by Bishop Henry Grey Graham on 29 June 1936. Following his ordination he returned to France where he entered the novitiate of the Sulpicians at Issy-les-Moulineaux, Paris and was incardinated priest of St Sulpice (PSS) in July of the following year. Further studies were undertaken at the Institut Catholique in Paris where he gained his licentiate in sacred theology (STL) in 1939.
Thereafter he was appointed to the staff of Le Grand Séminaire at Bordeaux in October 1939 and transferred to Le Grand Séminaire at Aix-en-Provence in January 1940. At this point the Second World War was under way in Europe so, following the fall of France to the Germans in June 1940, Father McGill, as a British citizen, had to make his escape via Marseille and Spain to avoid internment as an enemy alien.