Fenwick High School is a private Catholic college preparatory school located in Oak Park, a town in Cook County, Illinois that is bordered by Chicago on the north, east, River Forest and Forest Park on the West, and Cicero and Berwyn on the south. Fenwick was founded in 1929 and is a ministry of the Province of St. Albert the Great. It is the only school directly operated and staffed by the Order of Preachers in the United States. It is named in honor of the first Bishop of Cincinnati, Dominican friar Edward Dominic Fenwick, O.P.. Fr. Richard Peddicord, O.P. has served as president of Fenwick High School since July 1, 2012. After a nearly year-long principal search, it was announced in April 2023 that Mark Rasar would be the next principal of Fenwick. On December 4, 2023, it was announced that Rasar would be leaving abruptly, after less than 6 months in the role. President Fr. Richard Peddicord, O.P. will serve as interim principal until a replacement is found.

Edward Dominic Fenwick, was an American prelate of the Catholic Church, a Dominican friar and the first Bishop of Cincinnati.