Roseann Quinn (November 17, 1944 – January 2, 1973) was an American schoolteacher in New York City who was stabbed to death in 1973 by a man she met at a bar.
Her murder inspired Judith Rossner's best-selling 1975 novel Looking for Mr.
Goodbar, which was adapted as a 1977 film directed by Richard Brooks and starring Diane Keaton, and its follow-up fact-based semi-sequel for TV, Trackdown: Finding the Goodbar Killer, released six years later in 1983.
Quinn's murder also inspired the 1977 account Closing Time: The True Story of the "Goodbar" Murder by New York Times journalist Lacey Fosburgh.
The case was the subject of a Season 3 episode of Investigation Discovery's series A Crime to Remember in 2015 ("Last Night Stand").