The 2015 Chicago Bears season was the franchise's 96th season in the National Football League. After the firing of general manager Phil Emery and head coach Marc Trestman following the 2014 season, the team hired former New Orleans Saints director of player personnel Ryan Pace and Denver Broncos head coach John Fox to fill those positions, respectively. Fox's hiring marked the Bears' third head coach in four seasons.

The Bears entered the 2015 season with hopes of improving their 5–11 record in 2014. The team started the regular season with a rough start, losing their first three games. In the following eight games, the team went 5–3, including a Thanksgiving win over the rival Green Bay Packers. However, the Bears then lost the first three games in December, and were officially eliminated from playoff contention in week fifteen by the Minnesota Vikings. In week sixteen against the Tampa Bay Buccaneers, the Bears improved upon their 2014 record with a 26–21 win. After losing in the final game of the season to the Detroit Lions, the Bears ended the season 6–10 and last in the NFC North.

2015 Chicago Bears season

The 2015 Bears were more competitive in games compared to the 2014 team, with six of their ten losses being by less than a touchdown. Additionally, new coordinators Adam Gase and Vic Fangio helped revitalize the offense and defense, respectively; under Gase, quarterback Jay Cutler threw a career-low eleven interceptions and recorded a 92.3 passer rating, the highest in his career. With Fangio, the defense allowed 397 points; the last two defenses had previously allowed franchise highs in points, including 442 in 2014. However, the team was marred by injuries during the year, with only four players starting all sixteen games. The Bears also went 1–7 at home in 2015, the worst home record in franchise history. This was also the first time since 1973 that the Bears failed to win a home game against a division opponent.

2015 Chicago Bears season

Offseason

Organizational changes

Front office

After three years, general manager Phil Emery was fired on December 29, 2014. Later in the day, former Baltimore Colts, Cleveland Browns, and New York Giants general manager and presidential assistant of Bears' founder George Halas, Ernie Accorsi, was hired by the organization as a consultant to help the team find a new GM and head coach.

2015 Chicago Bears season

On December 29, NFL Network insider Ian Rapoport reported that the Bears had four candidates for the GM position: Kansas City Chiefs director of player personnel and former Bears' director of pro scouting Chris Ballard, Giants' vice president of player evaluation and 2012 finalist for the Bears' GM job Marc Ross, Tennessee Titans vice president of player personnel Lake Dawson, and Baltimore Ravens director of pro personnel Vince Newsome. Ravens' assistant general manager Eric DeCosta was also rumored to be a potential candidate by Dan Pompei, while Minnesota Vikings assistant GM George Paton declined an offer. DeCosta later announced his intention to remain with the Ravens. Later in the week, Chicago requested an interview with New Orleans Saints director of player personnel Ryan Pace and Houston Texans director of pro scouting Brian Gaine.

On January 6, the Bears conducted interviews for general manager with Gaine and Dawson. Ballard and Pace were interviewed the next day, and Pace was hired on January 8. On January 13, director of pro personnel Kevin Turks was fired. The Bears hired former Saints area scout Josh Lucas as their director of player personnel on January 18. In the scouting department, three scouts were hired on May 15. Ravens national scout Joe Douglas became the director of college scouting, Broncos assistant director of pro personnel Anthony Kelly as director of pro scouting and New York Jets area scout Christopher Prescott was hired in the same role.

Coaching

On the same day of Emery's firing, two-year head coach Marc Trestman was also fired, as was offensive coordinator Aaron Kromer. Quarterbacks coach Matt Cavanaugh's contract expired on the same day, and was not retained by the team.

In the hunt for a new head coach, the Bears requested interviews with Denver Broncos offensive coordinator Adam Gase, Arizona Cardinals defensive coordinator Todd Bowles, Seattle Seahawks defensive coordinator Dan Quinn, and Detroit Lions defensive coordinator Teryl Austin. The team also showed interest in Ravens' offensive coordinator Gary Kubiak and former Buffalo Bills head coach Doug Marrone. However, Kubiak announced on January 11 that he will stay with Baltimore.