The 2013 season was the Seattle Seahawks' 38th in the National Football League (NFL) and their fourth under head coach Pete Carroll. With the Seahawks tenth win in the eleventh week of the season, the team secured double-digit victories in consecutive seasons for the first time in franchise history. Their 13–3 regular season record is tied with the 2005 season for the best in franchise history. Seattle's defense in 2013 is regarded by many to be one of the best in NFL history.

The 2013 NFL season was the 94th season in the history of the National Football League (NFL) and the 48th of the Super Bowl era. The season saw the Seattle Seahawks capture the first championship in the franchise's 38 years in the league with a lopsided victory over the Denver Broncos in Super Bowl XLVIII, the league's championship game. The Super Bowl was played at MetLife Stadium in East Rutherford, New Jersey, on Sunday, February 2, 2014. It was the first Super Bowl hosted by New Jersey and the first to be held outdoors in a cold weather environment. The Seahawks scored 12 seconds into the game and led the rest of the way on the back of their Legion of Boom defense.