The 2017 season was the Jacksonville Jaguars' 23rd in the National Football League (NFL) and their first under head coach Doug Marrone.

Marrone was hired after acting as the team's interim head coach for the final two games of the 2016 season.

The team improved on their 3–13 record from 2016 and ended their 10-year playoff drought dating back to 2008 with a Week 15 win over the Houston Texans.

They won the wild card game against the Buffalo Bills 10–3, then headed to Pittsburgh, beating the Pittsburgh Steelers 45–42 to advance to the AFC Championship to face the New England Patriots, the first time that they had made the AFC Championship game since 1999.

Despite leading for much of the game, the Jaguars would allow two fourth quarter touchdowns, and ultimately lost to the Patriots 24–20.

Jacksonville finished in the top of the league in multiple defensive categories, and were considered "historically good" by some analysts.

Running backs (RB) Wide receivers (WR) Tight ends (TE) Defensive linemen (DL) Defensive backs (DB) Special teams Reserve On December 13, 2016, the NFL announced that the Jaguars would play host to the Baltimore Ravens at Wembley Stadium in London, England, as part of their commitment to the London Games.