Chicago Fire Football Club is an American professional soccer club based in Chicago. The club competes in Major League Soccer (MLS) as a member of the Eastern Conference. The Fire play their home games at Soldier Field, which they share with the Chicago Bears of the National Football League (NFL).

The franchise, named in memory of the Great Chicago Fire of 1871, was founded as the Chicago Fire Soccer Club on October 8, 1997, the Great Fire's 126th anniversary. The team began play in 1998 as one of the league's first expansion teams. The Fire won the MLS Cup as well as the U.S. Open Cup (the \"double\") in their first season in 1998. They also won U.S. Open Cups in 2000, 2003, and 2006, in addition to the 2003 MLS Supporters' Shield. Although finishing near the bottom of the league consistently, Chicago Fire FC is valued at over $500 million.

The club maintains an extensive development system, consisting of the Chicago Fire Development Academy and the Chicago Fire Juniors youth organization. They also operate the Chicago Fire Foundation, the team's community-based charitable division.