Tocsin

A Tocsin is an alarm or other signal sounded by a bell or bells. It may refer to:

Cold War

 * TOCSIN, the codeword attached by the Royal Observer Corps to any reading on the Bomb Power Indicator after a nuclear strike on the United Kingdom during the Cold War
 * Tocsin Bang, the codeword attached by the Royal Observer Corps to any reading on the AWDREY instrument after a nuclear strike on the United Kingdom during the Cold War
 * Exercise Tocsin, a name for the nuclear attack simulation performed by the Government of Canada
 * TOCSIN, a Harvard undergraduate group against nuclear weapons, led by Todd Gitlin

Music

 * Tocsin (album), a 1984 album by goth rock band Xmal Deutschland
 * Tocsin (Year of No Light album), a 2013 album by French shoegaze band Year of No Light
 * the fourth and final movement of the Symphony No. 11 (1957) by Dmitri Shostakovich

Newspapers

 * The Tocsin, an early Australian socialist newspaper
 * Tocsin (newspaper), a newspaper from Red Bluff, California; see California Digital Newspaper Collection
 * Marin County Tocsin, a newspaper from Marin County, California; see California Digital Newspaper Collection
 * Tehama Tocsin, an early name of the Chico Enterprise-Record newspaper in Tehama, California
 * Tocsin News , or The Enterprise-Tocsin, a newspaper in Mississippi
 *  The Tocsin of Liberty, an anti-slavery newspaper from the US Liberty Party.

Other

 * Tocsin, Indiana, a small town in the United States
 * "The Tocsin", a poem by John Pierpont