Triple Nickel, Triple Nickels or Triple Nickles may refer to:
Military 555th Engineer Brigade (United States), part of the U.S. Army's I Corps 555 Field Artillery Battalion, part of the U.S. Army's 5th Infantry Regiment during the Korean War 555th Fighter Squadron, part of the U.S. Air Force's 31st Fighter Wing 555th Mobile Infantry Regiment, a fictional elite military unit in John Ringo's Legacy of the Aldenata book series 555th Parachute Infantry Battalion (United States), aka "Triple Nickles", an all-black unit of the U.S. Army during World War II 53-0555, a retired Lockheed EC-121 Warning Star aircraft on display at the National Museum of the United States Air Force
Other 555 timer IC, an integrated circuit popular with hobbyists Interstate 555, a highway in Arkansas, United States Triple Nickel Books, published by Solomon Gelman Triple Nickel lift at Bluewood Ski Area