The following numbers are unofficially retired, meaning they are never worn or are rarely worn, despite not being displayed as retired at Lambeau Field:
No. 1: The Packers named their field after founder Curly Lambeau, paying him the ultimate tribute. The number 1 had not been worn since Lambeau in 1926.
No. 5: Hall of Famer Paul Hornung’s number. Only a handful of players have worn it in-game since Hornung in 1966, and none since 1988.