William P. Callahan


William Patrick Callahan

Bishop Emeritus of La Crosse
ChurchRoman Catholic
DioceseLa Crosse
AppointedJune 11, 2010
InstalledAugust 11, 2010
RetiredMarch 19, 2024
PredecessorJerome Edward Listecki
SuccessorGerard William Battersby
Previous post(s)
Orders
OrdinationApril 30, 1977
by William Edward Cousins
ConsecrationDecember 21, 2007
by Timothy M. Dolan, Richard J. Sklba, and John J. Myers
Personal details
Born (1950-06-17) June 17, 1950 (age 74)
MottoAdoramus te Christe
(We adore you Christ)
Styles of
William Patrick Callahan
Reference style
Spoken styleYour Excellency
Religious styleBishop

William Patrick Callahan, OFM Conv. (born June 17, 1950) is an American Catholic prelate serving as Bishop of La Crosse from 2010 to May 2024. He is a member of the Conventual Franciscans.

Callahan previously served as an auxiliary bishop for the Archdiocese of Milwaukee. After Archbishop Timothy Dolan was named Archbishop of New York, Callahan was elected the apostolic administrator of the Archdiocese of Milwaukee, serving until November 14, 2009.