1972–73 Cardiff City F.C. season

's 46th season in the Football League.

They competed in the 22-team Division Two, then the second tier of English football, finishing twentieth.

The season also saw Cardiff-born Phil Dwyer, who would go on to break the club's appearance record, make his debut for the club.

Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.

Players may hold more than one non-FIFA nationality.