Sacksonville was a nickname given to the defense of the Jacksonville Jaguars during their 2017 season. Their defensive coordinator was Todd Wash. The nickname derived from the high number of sacks tallied by the defense (55), which was second only to the Pittsburgh Steelers, who accumulated 56 sacks. Ranked second overall, the defense revitalized a Jaguars team that went 3–13 the previous season to a 10–6 record and AFC South division title, culminating in an AFC Championship Game appearance, only for them to lose to the New England Patriots.
The Sacksonville defense was short-lived as the Jaguars returned to the bottom of the AFC South during their next three seasons, while the defense regressed to ranking 25th in 2019. By 2022, all members of the defense left the team.