Thomas Michael O'Leary

His Excellency, The Most Reverend Thomas Michael O'Leary
Bishop of Springfield in Massachusetts
See	Diocese of Springfield in Massachusetts
In office	September 8, 1921 to October 10, 1949
Predecessor	Thomas Daniel Beaven
Successor	Christopher Joseph Weldon
Orders
Ordination	December 18, 1897 by Maxime Decelles
Consecration	September 8, 1921 by Arthur Alfred Sinnott
Personal details
Born	(1875-08-16)August 16, 1875 Dover, New Hampshire, US
Died	October 10, 1949(1949-10-10) (aged 74) Springfield, Massachusetts, US
Denomination	Roman Catholic
Education	Mungret College Grand Séminaire de Montréal

Thomas Michael O'Leary (August 16, 1875 – October 10, 1949) is an American prelate of the Roman Catholic Church. He served as the bishop of the Diocese of Springfield in Massachusetts from 1921 until his death in 1949.