Steven Mark Lonegan is an American businessman and politician who served as mayor of Bogota, New Jersey, from 1996 to 2007. He was also the Republican Party's nominee in the 2013 Special Senate election in New Jersey, which he lost to Cory Booker.

The 2013 United States Senate special election in New Jersey was held on October 16, 2013, to fill the New Jersey United States Senate Class 2 seat for the remainder of the term ending January 3, 2015. The vacancy resulted from the death of five-term Democratic senator Frank Lautenberg on June 3, 2013. On June 4, 2013, New Jersey Governor Chris Christie announced that a primary election to fill the vacancy would take place on August 13, 2013 and that a special election would follow on October 16, 2013. Christie appointed Republican New Jersey Attorney General Jeffrey Chiesa to the seat as a placeholder; Chiesa announced at the time of his appointment that he would not be a candidate in the special election.