Roman Stanley Gribbs (December 29, 1925 โ April 5, 2016) was an American politician who served as the Mayor of Detroit from 1970 to 1974. Later, Gribbs served as a judge on the Michigan Court of Appeals. Gribbs was the last white mayor of the city, which was in the midst of becoming a majority-black city, until the election of Mike Duggan in 2013.