John S. Siemianowski


John Steven Siemianowski
Auxiliary Bishop of Chicago
Titular Bishop of Gratianopolis
ArchdioceseChicago
AppointedDecember 20, 2024
InstalledFebruary 26, 2025
Other post(s)Titular Bishop of Gratianopolis
Orders
OrdinationMay 20, 1989
ConsecrationFebruary 26, 2025
by Blase J. Cupich, Robert Gerald Casey, and Jeffrey S. Grob
Personal details
Born (1960-05-26) May 26, 1960
MottoMake All Things New
Coat of arms
Styles of
John S. Siemianowski
Reference style
Spoken styleYour Excellency
Religious styleBishop

John Steven Siemianowski (born May 26, 1960) is an American priest of the Catholic Church who serves as auxiliary bishop for the Archdiocese of Chicago.