The Netherlands Football League Championship 1903–1904 was contested by seventeen teams participating in three divisions. This season, the western division had been split in two, creating the Eerste Klasse West-A and the Eerste Klasse West-B. The national champion would be determined by a play-off featuring the winners of the three divisions of the Netherlands. HBS Craeyenhout won this year's championship by beating Velocitas and PW.
New entrants Eerste Klasse East: GVC Wageningen, the result of a merger between last years competitors Go Ahead Wageningen and Victoria Wageningen
Eerste Klasse West-A: Moved from Division West-B: HBS Craeyenhout Koninklijke HFC Quick 1890
Eerste Klasse West-B: Moved from Division West-A: HFC Haarlem HVV Den Haag Velocitas
Divisions
Eerste Klasse East
Eerste Klasse West-A
Eerste Klasse West-B
Championship play-off
References RSSSF Netherlands Football League Championships 1898-1954 RSSSF Eerste Klasse Oost RSSSF Eerste Klasse West