During the 2004–05 Dutch football season, AZ Alkmaar competed in the Eredivisie.

AZ reached the UEFA Cup semi-finals, the farthest they had progressed in Europe since winning the UEFA Cup in 1981.

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

Players may hold more than one non-FIFA nationality.

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