1999–2000 Cardiff City F.C. season

The 1999–2000 season was Cardiff City F.C.'s 73rd season in the Football League. They competed in the 24-team Division Two, then the third tier of English football, finishing twenty-first, suffering relegation to Division Three.

During the season manager Frank Burrows parted company with the club, being replaced by Billy Ayre.

Note: Flags indicate national team as defined under FIFA eligibility rules. Players may hold more than one non-FIFA nationality.

NB In the Football League goals scored (F) takes precedence over goal difference