Michael Portier

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His Excellency, The Most Reverend Michael Portier
Bishop of Mobile
Church	Catholic Church
See	Diocese of Mobile
In office	May 15, 1829 – May 14, 1859
Successor	John Quinlan
Orders
Ordination	May 16, 1818
Consecration	August 26, 1825
Personal details
Born	(1795-09-07)September 7, 1795 Montbrison, France
Died	May 14, 1859(1859-05-14) (aged 63) Mobile, Alabama, United States
Signature

Styles of Michael Portier
Reference style	The Most Reverend
Spoken style	His Excellency
Religious style	Monsignor
Posthumous style	not applicable

Michael Portier (September 7, 1795, Montbrison, France – May 14, 1859, Mobile, Alabama) was an American Catholic bishop who served as the first Bishop of Mobile from 1829 until his death in 1859.

Portier emigrated from France in 1817, and was ordained thereafter in the United States. He later founded many parishes and Catholic institutions in Alabama and Florida, particularly in Mobile. Among them was Providence Hospital. He also recruited religious orders of men and women to teach and care for parishioners. He is also one of several early American Catholic bishops to have owned slaves.