Thomas Joseph Costello

American Roman Catholic prelate (1929–2019)

His Excellency, The Most Reverend Thomas Joseph Costello
Auxiliary Bishop of Syracuse Titular Bishop of Perdices
Archdiocese	New York
Diocese	Syracuse
Appointed	January 2, 1978
Installed	March 18, 1978
Term ended	March 23, 2004
Other post(s)	Titular Bishop of Perdices
Orders
Ordination	June 5, 1954
Consecration	March 18, 1978 by Francis James Harrison, David Frederick Cunningham, and Francis Mugavero
Personal details
Born	(1929-02-23)February 23, 1929 Camden, New York
Died	February 15, 2019(2019-02-15) (aged 89)

Styles of Thomas Joseph Costello

Reference style	His Excellency The Most Reverend
Spoken style	Your Excellency
Religious style	Bishop

Thomas Joseph Costello (February 23, 1929 – February 15, 2019) was an American prelate of the Catholic Church who served as an auxiliary bishop of Roman Catholic Diocese of Syracuse.

Born in Camden, New York, Costello was ordained to the priesthood on June 5, 1954, at the Cathedral of the Immaculate Conception and served as a priest for 24 years before being consecrated a bishop on March 13, 1978. In addition to serving as auxiliary bishop of Syracuse, he was also named Titular Bishop of Perdices.

In the years before being elevated to bishop, Costello received the title of monsignor from Pope Paul VI in 1965.

He retired on March 23, 2004.^[1] He died on February 15, 2019.