Joseph Anthony O'Sullivan (November 29, 1886 – June 6, 1972) was a Canadian prelate of the Catholic Church.
[1] He received his early education at St. Mary's School in his native city, and then attended St. Jerome's College in Kitchener from 1903 to 1908.
[4] On February 6, 1931, O'Sullivan was appointed Bishop of Charlottetown in Prince Edward Island by Pope Pius XI.
[4] He also encouraged Eucharistic Congresses, established the Confraternity of Christian Doctrine, and presided over several developments of St. Dunstan's University.
[3] O'Sullivan died at age 85, and is buried at Holy Sepulchre Cemetery in Hamilton.