🐬 Correct! The 1972 Miami Dolphins are the only NFL team to go completely undefeated in both the regular season and playoffs. Under head coach Don Shula, the Dolphins went 14-0 in the regular season and then won all three of their playoff games, including Super Bowl VII, to finish 17-0 overall. Led by a dominant defense known as the 'No-Name Defense,' and an efficient offense featuring quarterback Bob Griese, fullback Larry Csonka, and running back Mercury Morris, the Dolphins’ season was a model of balance, discipline, and execution. The team’s perfect run has become legendary, and members of that team famously toast each year when the last undefeated team in the league takes its first loss. It’s a record that has stood for over 50 years and remains the gold standard for NFL greatness.