Blueback may refer to any of a number of unrelated fish species with blue coloration: Blueback (novel), a 1997 novel by Australian author Tim Winton USS Blueback (SS-326), a US Navy submarine of the Balao-class USS Blueback (SS-581), a Barbel-class submarine and the last non-nuclear submarine to join the US Naval Fleet Beardslee trout or bluebacks Blueback, a juvenile hooded seal Blueback (film), an Australian drama See also Blueback herring or blueback shad Blueback salmon or sockeye salmon