Original retro vintage football shirt Birmingham City FC 2017/18

The 2017–18 season is Birmingham City Football Club's 115th season in the English football league system and seventh consecutive season in the second-tier Championship. For the second season running, they finished in 19th place after going into the final day still in danger of relegation. As with all English Football League clubs, the first team also competed in the FA Cup, in which they lost in a fourth-round replay to Huddersfield Town, and in the EFL Cup, from which they were eliminated by AFC Bournemouth in the second round.

After a poor start to the season, with only one win from the first eight matches, and only two weeks after the close of the transfer window, during which he was allowed to bring in 13 new players, Harry Redknapp was sacked as manager. He was succeeded by Steve Cotterill, who was dismissed after five months, having failed to take the team clear of potential relegation. Garry Monk was appointed on 4 March to become Birmingham's fifth permanent manager in 15 months.

Thirty-five players made at least one appearance in first-team competition, of whom five were loan signings; there were thirteen different goalscorers. Winger Jacques Maghoma appeared in 44 of the club's 51 fixtures over the season Che Adams was top scorer overall, with 9 goals in all competitions, and in league matches, Sam Gallagher top scored with just 6. The average league attendance, of 21,041, was some 12% up on 2016–17.