Nickelback is a Canadian rock band formed in Hanna, Alberta, in 1995 by Chad Kroeger, Mike Kroeger and Ryan Vikedal.

In American football, a nickelback is a cornerback who serves as the fifth defensive back on defense. Like a dimeback, nickelbacks are backup corners (as opposed to the #1 and #2 corners, who are considered starters). Nickelback is usually played by a slightly better cornerback than dimeback and the player must be better at run defense, as the nickel formation is mainly used as a compromise between run and pass defense formations.