Blackfish (disambiguation)

Blackfish is a common name for several species of fish.

Blackfish may also refer to:
 * Blackfish, a catch-all slang term for small, dark-colored toothed whales such as the pygmy sperm whale, the false killer whale, and the short-finned pilot whale
 * Blackfish (film), a 2013 documentary focusing on the orca Tilikum held by SeaWorld
 * The Black Fish, the former name of FishAct, a marine conservation organization
 * USS Blackfish (SS-221), a United States Navy submarine, named for the blackfish, any one of several small, toothed whales
 * Blakfish, an English math rock band that disbanded in 2010
 * Blackfish (Shawnee leader)
 * Brynden Tully, a character in George R.R. Martin's A Song of Ice and Fire series
 * Blackfish Publishing, a British magazine publisher