John Anthony Donovan (August 5, 1911 – September 18, 1991) was a Canadian-born prelate of the Roman Catholic Church. He served as Bishop of Toledo from 1967 to 1980.
Donovan was born in Chatham, Ontario, the youngest son in a family of ten. After immigrating to the United States, he attended Sacred Heart Seminary in Detroit, Michigan. He then studied at the Pontifical North American College and the Pontifical Gregorian University in Rome. Donovan was ordained to the priesthood on December 8, 1935. He later served as chancellor and vicar general of the Archdiocese of Detroit.
On September 6, 1954, Donovan was appointed Auxiliary Bishop of Detroit and Titular Bishop of Rhasus by Pope Pius XII. He received his episcopal consecration on the following October 26 from Cardinal Edward Mooney, with Bishops Allen James Babcock and Alexander M. Zaleski serving as co-consecrators. From 1958 to April, 1967 he presided over St. Veronica's parish in East Detroit, MI (now Eastpointe, MI). From 1962 to 1965, he attended all four sessions of the Second Vatican Council. Donovan was named the fifth Bishop of Toledo, Ohio, on February 25, 1967. He was formally installed on April 18, 1967.