William Stephen Belichick (; born April 16, 1952) is an American football coach who is the head coach of the New England Patriots of the National Football League (NFL). Belichick has extensive authority over the Patriots' football operations, effectively making him the general manager of the team as well. He holds numerous coaching records, including winning a record five Super Bowls as a head coach.
Belichick began his coaching career in 1975, and by 1985, was the defensive coordinator for New York Giants head coach Bill Parcells. Parcells and Belichick won two Super Bowls together (XXI and XXV), before Belichick left to become the head coach of the Cleveland Browns in 1991. He remained in Cleveland for five seasons, and was fired following the team's 1995 season. Belichick then rejoined Parcells, first in New England where the team lost Super Bowl XXXI, and later with the New York Jets.
After being named head coach of the Jets in early 2000, Belichick resigned after only one day on the job to accept the head coaching job for the New England Patriots on January 27, 2000. Since then, Belichick has led the Patriots to 16 AFC East division titles, 13 appearances in the AFC Championship Game, and nine Super Bowl appearances. He was named the AP NFL Coach of the Year for the 2003, 2007, and 2010 seasons. His teams won Super Bowls XXXVI, XXXVIII, XXXIX, XLIX, and LI and lost Super Bowls XLII, XLVI, and LII. Belichick's appearance in Super Bowl LII extended his record to eight Bowls as a head coach, as well as being a record eleventh participation in a Super Bowl in any capacity. This also tied him with Neal Dahlen for the most Super Bowl wins in any capacity with seven. In addition, their appearance in Super Bowl LIII will be the Patriots' eleventh, the most of any team.
Belichick is the NFL's longest-tenured active head coach, and currently third all-time in regular season coaching wins in the NFL at 261, and first in playoff coaching wins with 28. He completed his 40th season as an NFL coach in 2014 and won his fifth Super Bowl as a head coach following the 2016 season, surpassing former Pittsburgh Steelers head coach Chuck Noll as the only head coach to win five Super Bowls. He is one of only five head coaches with four or more titles in NFL history. He is also the only head coach in NFL history to win three Super Bowl championships in a four-year span. He is widely considered to be one of the greatest coaches in NFL history by current and former players, his peers and the press.