2018 Indianapolis Colts season

The 2018 season was the Indianapolis Colts' 66th in the National Football League (NFL), their 35th in Indianapolis, and their 11th playing their home games at Lucas Oil Stadium. It was also their first season under head coach Frank Reich and second under the leadership of general manager Chris Ballard. Despite a 1–5 start, the Colts managed to improve on their injury-plagued 4–12 campaign from the year prior with a 38–10 victory over the Tennessee Titans, and a 5-game winning streak. On Week 16, the Colts achieved their first winning season since 2014 with a 28–27 win against the New York Giants. The next week, they beat the Tennessee Titans in a win or go home match-up to reach the playoffs for the first time since 2014 and became the third team in NFL history to qualify for the playoffs after a 1–5 start and first since the 2015 Chiefs.

In the wild-card round, the Colts defeated the Houston Texans 21–7, but lost to the Kansas City Chiefs in the divisional round 31–13, ending their season. To date, this is the most recent season the Colts have won a playoff game.

This would be the last season that the Colts would have franchise quarterback Andrew Luck, as he would retire following the season, citing his continuous struggle with injuries and no longer enjoying the game.