List of Kansas City Chiefs seasons

The Kansas City Chiefs have completed 61 seasons in professional American football and 51 with the National Football League (NFL). This article documents the season-by-season records of the Chiefs franchise from 1960 to the conclusion of their most recent season in 2019, including postseason records, and league awards for individual players or head coaches.

Arrowhead Stadium has served as the Chiefs' home stadium since 1972.

The team began play as a charter member of the American Football League (AFL) in 1960 as the Dallas Texans. Following the 1962 AFL season, the team relocated to Kansas City, Missouri and was renamed the Kansas City Chiefs. The team has played in 932 total games in a total of 61 seasons, and a winning percentage of .538. The Chiefs' 14–2 season in 2020 remains their best regular season record to date while their 2–14 records in 2008 and 2012 remain their worst.

The Texans/Chiefs were the winningest team in the history of the AFL, compiling an 87–48 record from 1960 to 1969. The team won three league championships and served as the AFL's representative in Super Bowls I and IV in the 1966 and 1969 seasons. Since the franchise's alignment to the NFL in 1970, they have won ten division titles, with five straight from 2016 to 2020, and eight wild card playoff berths, four of which were between 1990 and 1997 when the team never lost as many games as it won. Despite the franchise's early success, the Chiefs did not win a postseason game between the 1993 and 2015 playoffs, and their victory on January 11, 1970 was the franchise's lone Super Bowl title until February 2, 2020. It was also a long drought between AFC Championship games, with their appearance in the 2018 playoffs being their first since 1993. The Chiefs' first home AFC Championship game ended in an overtime defeat as the New England Patriots moved on to win a record-tying sixth Super Bowl ring.

The Chiefs have suffered two main periods of failure. Between 1972 and 1985 the Chiefs never appeared in the postseason and achieved only one winning season (in 1981) from 1974 until 1985. Between 2007 and 2012, the Chiefs also struggled, with two two-win and two four-win seasons. However, the recent Chiefs have done much better, with an 98–43 record (including postseason) and recording more wins than losses every year from the 2013 to 2020 seasons. In their eight seasons under Andy Reid, the Chiefs have six consecutive playoff seasons, and five consecutive division titles, with the team ultimately winning Super Bowl LIV for its first championship in 50 years. The Chiefs returned to Super Bowl LV the next year, but fell to the Tampa Bay Buccaneers, ending their bid at a repeat.