1969–70 Tweede Divisie

The Dutch Tweede Divisie in the 1969–70 season was contested by 17 teams. sc Heerenveen won the championship and were promoted to the Eerste Divisie along with runners-up FC Wageningen.

New entrants
Relegated from the Eerste Divisie:
 * FC Eindhoven
 * FC Wageningen
 * RBC