The 2023 season was the Indianapolis Colts' 71st season in the National Football League (NFL) and their 40th in Indianapolis. It was also their seventh under the leadership of general manager Chris Ballard and the first under new head coach Shane Steichen. Despite low expectations, the Colts improved on their 4–12–1 record from the previous season after a Week 10 victory over the New England Patriots in Frankfurt, and more than doubled their wins from the previous year, and finished with a 9–8 record. Unable to win the AFC South for the 9th consecutive season, they were eliminated from playoff contention in the final week of the season for the second time in three seasons after a loss to the Houston Texans.
The Colts opened their 2023 preseason with a 23–19 loss to the Buffalo Bills on August 12, 2023. Anthony Richardson, the fourth overall selection in the 2023 NFL draft, started the game, completing seven of his 12 passes for 67 yards while being intercepted once. He was also credited with two carries for seven yards. Three days later, Richardson was named the team's starter for the regular season by first-year head coach Shane Steichen.
Note: Intra-division opponents are in bold text.
at Lucas Oil Stadium, Indianapolis, Indiana
With the loss, the Colts started their season at 0–1. The Colts have failed to win in Week 1 for the 10th straight season.
at NRG Stadium, Houston, Texas
at M&T Bank Stadium, Baltimore, Maryland
With the upset victory over the Ravens, the Colts picked up their second win of the season, improving to 2-1. By successfully kicking four field goals of a distance of 50 yards or greater (54, 53, 53, 53) in a single game, Matt Gay became the first kicker in NFL history to accomplish the feat.
at Lucas Oil Stadium, Indianapolis, Indiana
Despite the Colts' comeback that made the game go into overtime, it was not enough, as they lost to the Rams 29–23. With the loss, the Colts evened their record at 2–2.
at Lucas Oil Stadium, Indianapolis, Indiana
Quarterback Anthony Richardson was placed on the injured reserve after he suffered an AC joint injury in this game, rendering him unable to play in the next four games at minimum. However, the Colts were still able to pull out a victory.
at EverBank Stadium, Jacksonville, Florida
The Colts had their ninth consecutive loss in Jacksonville.
at Lucas Oil Stadium, Indianapolis, Indiana
at Lucas Oil Stadium, Indianapolis, Indiana
at Bank of America Stadium, Charlotte, North Carolina
at Deutsche Bank Park, Frankfurt, Germany
The Colts beat the Patriots on the road for the first time since winning Super Bowl XLI.
at Lucas Oil Stadium, Indianapolis, Indiana
at Nissan Stadium, Nashville, Tennessee
The Colts erased a 17-7 deficit and beat the Titans 31-28 in overtime, sweeping them for the first time since 2018.
at Paycor Stadium, Cincinnati, Ohio
The Colts suffered their 4th consecutive loss in Cincinnati, and haven't won there since 2005.
at Lucas Oil Stadium, Indianapolis, Indiana
The Colts erased a 13-0 deficit and upset the Steelers. It was their first win against the Steelers since 2008, and their first home win against them since 2005.
at Mercedes-Benz Stadium, Atlanta, Georgia
The Colts lost to the Falcons for the first time since 2011, and lost their first game at Atlanta since 1998.
at Lucas Oil Stadium, Indianapolis, Indiana
The Colts beat the Raiders at home for the first time since 2013 when the Raiders were based in Oakland.
at Lucas Oil Stadium, Indianapolis, Indiana
The Colts extended their home losing streak to the Texans to 2 games.