How Many NFL Teams Have Gone Undefeated in a Single Season?

By Staff WriterLast Updated Apr 10, 2020 6:05:21 PM ET

Only one National Football League team has gone undefeated in both the regular season and subsequent playoff games. The 1972 Miami Dolphins won 14 regular season games and three postseason playoff games, including Super Bowl VII against the Washington Redskins, for a perfect record.