John B. “Jack” O’Reilly Jr. was Mayor of Dearborn from 2006 until the beginning of 2022. Before becoming mayor, he had previously served for 17 years as President of the Dearborn City Council. O’Reilly is a graduate of St. Alphonsus High School, the University of Detroit, and Oakland University. During his career, he has served as a Washington staff counsel and district director for then Congressman John Dingell. He first became mayor after the passing of mayor Michael Guido. O’Reilly then won a special election and was sworn in as a full mayor in February 2007.
As mayor, O’Reilly has continued the Dearborn tradition of maintaining and improving residential areas and recreational facilities. O’Reilly also promoted economic development and community programs, most notably with Ford Land, where he worked with Ford Land’s Wagner Place development, which remade part of Dearborn’s west downtown area. O’Reilly was elected president of the Michigan Municipal League from 2015 – 2016 and also maintains a role with the Urban Core Mayors, a bipartisan, multi-regional coalition of 13 central city mayors.