The Kansas City Athletics were a Major League Baseball team that played in Kansas City, Missouri, from 1955 to 1967, having previously played in Philadelphia, Pennsylvania as the Philadelphia Athletics. After moving to Oakland, California in 1967, the team became the Oakland Athletics. In 2025, the team moved to West Sacramento, California as the Athletics, and plans ultimately to move to the Las Vegas metropolitan area.
The Kansas City franchise played at Municipal Stadium from 1955 to 1967.
The Kansas City Athletics had an overall win–loss record of 829–1,224–7 (.404) during their 13 years in Kansas City. Four Kansas City Athletics players were elected to the National Baseball Hall of Fame: Satchel Paige, Reggie Jackson, Enos Slaughter, and Catfish Hunter.