Long Blue Line

The phrase "Long Blue Line" may refer to:

Collegiate alumni

 * Marietta College, Marietta, Ohio
 * United States Air Force Academy, Colorado
 * United States Coast Guard Academy, New London, Connecticut

Secondary school alumni

 * St. Xavier High School, Cincinnati, Ohio (see List of St. Xavier High School (Ohio) people)

Other uses

 * An episode in season 6 of Cold Case, an American television series


 * The Troopers Drum and Bugle Corps