The Dutch Eerste Divisie in the 1989–90 season was contested by 19 teams.
Schiedamse Voetbal Vereniging (SVV) won the championship.
From this year onwards, only one club promoted directly to the Eredivisie, instead of two.
Promotion was no longer certain for the runner-up of the Eerste Divisie.
Losers: remain in Eerste Divisie Play-off 1 Winners: promoted to the Eredivisie.