1964–65 Cardiff City F.C. season

The 1964–65 season was Cardiff City F.C.'s 38th season in the Football League. They competed in the 22-team Division Two, then the second tier of English football, finishing thirteenth.

The season also saw the club compete in European competition for the first time, reaching the semi-finals of the European Cup Winners Cup before being beaten by Spanish side Real Zaragoza.