2023 Kansas City Chiefs season

The 2023 season was the Kansas City Chiefs' 54th season in the National Football League (NFL), their 64th overall, and their eleventh under head coach Andy Reid.

The Chiefs, who entered the season as defending Super Bowl champions, became the first team to win back-to-back Super Bowl titles since the New England Patriots in 2003 and 2004, along with being the second AFC West team to repeat as Super Bowl champions since their franchise rival Denver Broncos in 1997 and 1998. Despite failing to match their 14–3 record during the previous year by posting an 11–6 record, they secured their eleventh consecutive winning season, and became division champions for the eighth consecutive season and a record 16th title overall. In total, the Chiefs scored 39 touchdowns during the regular season, falling from their 61 touchdowns in the prior season. The decline in touchdowns dropped the team in scoring from 2nd in the league to 15th.

In the playoffs, the Chiefs defeated the Miami Dolphins by the score of 26–7 in the wild card round in frigid weather, as the game was the fourth coldest game played in NFL history. In the divisional round, the team held on to a narrow 27–24 win over the Buffalo Bills on the road, marking their 3rd postseason victory over Buffalo in four seasons, and additionally marking Kansas City's first road postseason game in the AFC with Patrick Mahomes. They made their sixth consecutive AFC Championship Game appearance, but their first on the road, defeating the Baltimore Ravens with a 17–10 score to advance to their fourth Super Bowl appearance in five years. They defeated the San Francisco 49ers 25–22 in overtime in Super Bowl LVIII, which was only the second overtime in Super Bowl history (the first being Super Bowl LI) and a rematch of Super Bowl LIV. The win moved the Chiefs to four Super Bowl titles, becoming the seventh franchise to accomplish that number.

The Chiefs' defense was a key part of their Super Bowl-winning season, as they had a 2nd ranked defense in terms of yardage and points per game, only behind the Ravens. Despite all four of their opponents in the playoffs having scoring offenses that finished in the top 10 in the NFL, the Chiefs only allowed 15.8 points per game in the playoffs. Patrick Mahomes won his third Super Bowl MVP with two touchdown passes, including the decisive play in overtime. This marked Mahomes' third Super Bowl title in his first six years starting for the Chiefs. With the team having trailed by ten points in the second quarter, it also marked the third time in the Reid/Mahomes era the Chiefs overcame a double-digit Super Bowl deficit to win the title.

The Kansas City Chiefs drew an average home attendance of 70,968 in 9 home games in the 2023 NFL season.