John Patrick Barrett (31 October 1878 – 2 November 1946) was a British clergyman who held high office in the Roman Catholic Church. He was born on 31 October 1878 in Liverpool, England. He was educated at St Edward's College, Everton, and at the University of London (he gained his Bachelor of Arts (BA) there, a Doctor of Philosophy (PhD) later, and a Doctor of Divinity (DD) from the Pontifical Gregorian University). He was ordained a priest on 19 June 1906 at Upholland, Skelmersdale, for the Archdiocese of Liverpool. After a period as a priest, he was elevated to the episcopacy as Auxiliary Bishop of Birmingham in 1927 and was appointed the fifth Bishop of Plymouth on 7 June 1929; he was enthroned on 31 July and continued in the post until his death. When his house was destroyed in an air