List of NFL retired numbers

San Francisco 49ers. retired numbers displayed at Candlestick Park in June 2009

Teams in the National Football League (NFL) retire jersey numbers of players who either are considered by the team to have made significant contributions to that team's success, or who have experienced untimely deaths during their playing career. As with other leagues, once a team retires a player's jersey number, it never issues the number to any other player, unless the player or team explicitly allows it.