Associated Press NFL Defensive Player of the Year Award

The Associated Press NFL Defensive Player of the Year Award (DPOY) is given by the Associated Press (AP) to the league's most outstanding defensive player at the end of every National Football League (NFL) season. It has been rewarded since 1971. The winner is decided by votes from a panel of 50 AP sportswriters who regularly cover the NFL. Since 2011, the award has been presented at the annual NFL Honors ceremony the day before the Super Bowl, along with other AP awards, such as the AP NFL Offensive Player of the Year Award, AP NFL Most Valuable Player Award, and AP NFL Rookie of the Year Award.

Lawrence Taylor and J. J. Watt are the only three-time winners of the award. Joe Greene, Mike Singletary, Bruce Smith, Reggie White, Ray Lewis, and Aaron Donald have each won it twice. Taylor is the only player to win the award as a rookie, doing so in 1981. In 2008, James Harrison became the only undrafted free agent to win the award. White is the only player to win the award with two different teams, winning in 1987 with the Philadelphia Eagles and again with the Green Bay Packers in 1998. Watt is the only player to win the award unanimously, receiving 50 out of 50 first place votes in 2014. He was also a near-unanimous winner in 2012 as he earned 49 out of 50 votes.

As of the end of the 2018 NFL season, linebackers have won the award 16 times, more than any other position. A defensive end has won thirteen times, followed by nine defensive tackles, five cornerbacks, and five safeties. Only two winners of the AP Defensive Player of the Year Award have also won the AP's Most Valuable Player Award for the same season: defensive tackle Alan Page in 1971 for the Minnesota Vikings and linebacker Lawrence Taylor in 1986 for the New York Giants. Aaron Donald is the incumbent holder of the award, winning it for the second consecutive year following the 2018 NFL season.