The 1977 NFL season was the 58th regular season of the National Football League. The two second-year expansion teams switched conferences, with the Seattle Seahawks moving from the NFC West to the AFC West, and the Tampa Bay Buccaneers transferring from the AFC West to the NFC Central.

The AFC Championship Game is the annual championship game of the American Football Conference (AFC) and one of the two semifinal playoff games of the National Football League (NFL), the largest professional American football league in the world. The game is played on the last Sunday in January by the two remaining playoff teams, following the AFC postseason's first two rounds. The AFC champion then advances to face the winner of the NFC Championship Game in the Super Bowl.