|2018 Detroit Lions season|
|Owner||Martha Firestone Ford|
|Head coach||Matt Patricia|
|General manager||Bob Quinn|
|Home field||Ford Field|
|Division place||4th NFC North|
|Playoff finish||Did not qualify|
|Pro Bowlers||CB Darius Slay |
LS Don Muhlbach
The 2018 season was the Detroit Lions' 89th in the National Football League (NFL) and their first under a new coaching staff led by head coach Matt Patricia. With their loss to the Los Angeles Rams in Week 13, the Lions failed to improve on their 9–7 campaign from the season before. With their Week 15 loss to the Buffalo Bills, the Lions clinched their first losing season since 2015, making this also their first losing season in the post-Calvin Johnson era. They also missed the playoffs for the second consecutive season and finished last in the NFC North for the first time since 2012 with a 6–10 record.
Despite the disappointing season, the Lions were able to upset the defending back-to-back AFC Champion New England Patriots 26–10 during Week 3, marking their first win over the Patriots since 2000, which was also the first year of the Brady/Belichick era. The Lions were also able to sweep the Green Bay Packers for the second straight year.