The Netherlands Football League Championship 1920–1921 was contested by 43 teams participating in four divisions. The national champion would be determined by a play-off featuring the winners of the eastern, northern, southern and western football division of the Netherlands. NAC won this year's championship by beating Be Quick 1887, AFC Ajax, and Go Ahead.
New entrants Eerste Klasse East: Promoted from 2nd Division: TSV Theole Eerste Klasse North: Promoted from 2nd Division: GVV Groningen Eerste Klasse South: Promoted from 2nd Division: BVV Den Bosch & SV DOSKO Eerste Klasse West: Promoted from 2nd Division: De Spartaan
Divisions
Eerste Klasse East
Eerste Klasse North
Eerste Klasse South
Eerste Klasse West
Championship play-off
References RSSSF Netherlands Football League Championships 1898-1954 RSSSF Eerste Klasse Oost RSSSF Eerste Klasse Noord RSSSF Eerste Klasse Zuid RSSSF Eerste Klasse West