The Cardiff City F.C. Academy is the youth football academy at Welsh side Cardiff City. The category two academy has a range of players from ages 7 to 18. The Cardiff City Under-23 side is the highest age group of football other than the senior first team at the club, although the side is allowed to field up to three overage players and a goalkeeper. The age range was initially set at under-21 until 2016 when the limit was increased to players under 23 years of age. The side competes in the Professional Development League 2.
The youth system at the club was given academy status in 2004 following the investment of chairman Sam Hammam. The academy had several managers in its formative years, including John Kerr who died suddenly while employed in the position. Several players who progressed through the academy in the first five years went on to play for the senior side and represent Wales at international level, such as Joe Ledley, Darcy Blake, Chris Gunter and Aaron Ramsey. Former Cardiff player Neal Ardley spent five years in charge of the academy before departing in 2012, witnessing the construction of the House of Sport training complex.
Dick Bate spent two years as the academy manager between 2012 and 2014 before being replaced by James McCarthy. The academy attracted national attention in 2019 when player development manager Craig Bellamy and other staff members were accused of bullying players. Bellamy stepped down from the role and a later enquiry stated that the environment at the academy had been "unacceptable". In 2020, the club announced plans to upgrade the academy to category one status, the highest possible rating available, and appointed Steve Morison as manager of the under-23 side.