1917–18 Netherlands Football League Championship

The Netherlands Football League Championship 1917–1918 was contested by 51 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. AFC Ajax won this year's championship by beating Go Ahead, Willem II, AFC and Be Quick 1887.

New entrants
Eerste Klasse East: Eerste Klasse North: Eerste Klasse South: Eerste Klasse West-A:
 * Promoted from 2nd Division: EFC PW 1885 (returning after three seasons of absence)
 * Promoted from 2nd Division: HSC
 * Promoted from 2nd Division: HVV Helmond
 * Promoted from 2nd Division: AFC Ajax (returning after three seasons of absence)

Eerste Klasse West-B: (new division)
 * Feijenoord
 * AFC
 * Amstel
 * VV Concordia
 * De Spartaan
 * Dordrecht
 * DVS Rotterdam
 * Hermes DVS
 * HVV 't Gooi
 * RFC Rotterdam
 * SVV
 * VVA