John Adrian Delaney (born June 29, 1956) is an American lawyer, politician, and university and college President. He served as mayor of Jacksonville, Florida, from 1995 to 2003, and as the president of the University of North Florida from 2003 to 2018. In 2021, he was named President of Flagler College after a few months as Interim. He is a member of the Republican Party.