Which NFL team had the most regular-season wins in a single 16-game season?

The New England Patriots had the most regular-season wins in a single 16-game NFL season, winning all 16 games in 2007. Their perfect 16–0 regular-season record set the league record for victories during the 16-game schedule era.

New England opened the season under head coach Bill Belichick and quarterback Tom Brady, winning every regular-season game before defeating the Jacksonville Jaguars and San Diego Chargers in the playoffs. The team finished the regular season with 589 points, then an NFL record, and a remarkable plus-315 point differential.

The Patriots were the first NFL team to complete a perfect regular season after the league adopted the 16-game schedule in 1978. Their achievement is often compared with the 1972 Miami Dolphins, who finished 14–0 before winning the postseason and completing the NFL’s only perfect full season.

New England’s bid for a 19–0 season ended with a 17–14 loss to the New York Giants in Super Bowl XLII. The NFL later expanded to a 17-game schedule, making the Patriots the only team to finish a 16-game regular season undefeated.