Team Wins Losses Playoff results Final result 1934 Chicago Bears season 13 0 Lost NFL Championship Game against New York Giants 13 -- 1 1942 Chicago Bears season 11 0 Lost NFL Championship Game against Washington Redskins 11 -- 1 1972 Miami Dolphins season 14 0 Won three playoff games including Super Bowl VII 17 -- 0 2007 New England Patriots season 16 0 Won two playoff games before losing in Super Bowl XLII against New York Giants 18 -- 1
what was the last nfl team to go undefeated
1972 Miami Dolphins