The 2002–03 season was Birmingham City Football Club's 100th in the English football league system, their 51st in the top tier, and their debut season in the Premier League, having been promoted via the play-offs. Under the management of Steve Bruce, they finished in 13th position in the 20-team league. Birmingham entered the 2002–03 FA Cup at the third round and lost to Fulham in that round, and, having entered the League Cup in the second round, lost to Preston North End in the third.
French manufacturers Le Coq Sportif supplied Birmingham's kit for the fifth consecutive season, and mobile phone retailer Phones4U retained the shirt sponsorship. Stern John was top scorer with nine goals in all competitions; if only league goals are considered, Clinton Morrison top-scored with six. Steve Vickers was club captain, but his long absences through injury meant that vice-captain Jeff Kenna usually captained the team.