The Netherlands Football League Championship 1939–1940 was contested by 52 teams participating in five divisions. The national champion would be determined by a play-off featuring the winners of the eastern, northern, southern and two western football divisions of the Netherlands. Feijenoord won this year's championship by beating Blauw-Wit Amsterdam, Heracles, Juliana and GVAV Rapiditas.
This season's championship was not considered official. Owing to the start of World War II, not all teams played an equal number of matches.
New entrants Eerste Klasse East: Promoted from 2nd Division: Enschedese Boys Eerste Klasse North: Promoted from 2nd Division: WVV Winschoten Eerste Klasse South: Promoted from 2nd Division: HVV Helmond & Limburgia Eerste Klasse West-I: Moving in from West-II: Ajax, DOS, HVV 't Gooi, HFC Haarlem and VSV Eerste Klasse West-II: Moving in from West-I: CVV Mercurius, HBS Craeyenhout, Hermes DVS, Sparta Rotterdam and Xerxes
Divisions
Eerste Klasse East
Eerste Klasse North
Eerste Klasse South
Eerste Klasse West-I
Eerste Klasse West-II
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