The Dutch Eerste Divisie in the 1980–81 season was contested by 19 teams. HFC Haarlem won the championship.
New entrants Relegated from the 1979–80 Eredivisie HFC Haarlem Vitesse Arnhem
League standings
Promotion competition In the promotion competition, four period winners (the best teams during each of the four quarters of the regular competition) played for promotion to the eredivisie.
Attendances
# Club Average 1 Dordrecht 5,111 2 Fortuna 4,806 3 Heerenveen 4,756 4 Cambuur 4,739 5 Haarlem 4,122 6 De Graafschap 3,511 7 Vitesse 3,272 8 Helmond 3,217 9 Volendam 3,122 10 Eindhoven 3,017 11 Veendam 2,917 12 Den Bosch 2,700 13 SVV 2,344 14 Telstar 2,300 15 VVV 2,234 16 Amersfoort 2,222 17 Heracles 2,183 18 Vlaardingen 1,289 19 Amsterdam 1,190
Source:https://www.european-football-statistics.co.uk/attn/archive/ned/avened81.htm
See also 1980–81 Eredivisie 1980–81 KNVB Cup
References
Netherlands - List of final tables (RSSSF)