Blackball

Blackball, black-ball, black ball, blackballed, or blackballing may refer to:
 * Blackballing, a rejection in a traditional form of secret ballot

Film

 * Blackball (film), a 2003 film starring Paul Kaye
 * Blackballed: The Bobby Dukes Story, a 2004 film starring Rob Corddry

Games

 * Blackball, a monster in the Mystara campaign setting of Advanced Dungeons & Dragons

Music

 * "Blackball" (The Offspring song), 1989
 * "Blackball", a Christian Hard Rock/Alternative band
 * "Blackball", a song by the industrial band KMFDM, on their 2003 album WWIII
 * "Blackball", the second song on the 2008 Bigelf album Cheat the Gallows

Sports

 * The in pocket billiards games including pool and snooker
 * Blackball (pool), a variant of the pocket billiards game eight-ball
 * Blackball, alternate name for Negro league baseball
 * Blackball (surfing), a flag to show surfers that they must clear the water

Other

 * Blackball, New Zealand, a small town located on the western coast of the South Island of New Zealand
 * Blackball Branch a branch railway line to Blackball, New Zealand
 * The Black Ball, an annual fundraising dance for the Keep a Child Alive charity
 * "Black ball", alternative name for Shade ball
 * Black Ball: a round black shape hoisted at a ship's mast head, with various contextual meanings.
 * "Blackballing", a form of male hazing ritual in which the victim's genitals are covered in black shoe polish. Common in British boarding schools and fraternities.