| Competition: | Derde Divisie |
| Season: | 2017–18 |
| Winners: | Sat: SV Spakenburg Sun: Jong Vitesse |
| Promoted: | Sat: SV Spakenburg Jong Almere City Scheveningen Sun: Jong Vitesse |
| Relegated: | Sat: Magreb '90 ACV VV Spijkenisse Capelle Sun: De Meern Jong De Graafschap Be Quick 1887 |
| Prevseason: | 2016–17 |
| Nextseason: | 2018–19 |
The 2017–18 Derde Divisie season is the second edition of the new Dutch fourth tier, formerly called Topklasse, since the restructuring of the league system in the summer of 2016.
| Club | Location | Venue | Capacity | Manager |
|---|---|---|---|---|
| ADO '20 | Heemskerk | Sportpark De Vlotter | 1,100 | Thijs Sluijter |
| Be Quick 1887 | Haren | Stadion Esserberg | 12,000 | Mischa Visser |
| Blauw Geel '38 | Veghel | PWA Sportpark | 2,500 | Erwin van Breugel |
| Jong De Graafschap | Varsselder | De Buitenham [3] | 1,500 | Richard Roelofsen |
| VV Dongen | Dongen | Sportpark De Biezen | 1,800 | Ron Timmers |
| EVV | Echt | Sportpark In de Bandert | 2,000 | Leo Beckers |
| HBS Craeyenhout | Den Haag | Sportpark Daal en Bergselaan | 1,000 | Marcel Koning |
| USV Hercules | Utrecht | Sportpark Voordorp | 800 | Erik Speelziek |
| HSC '21 | Haaksbergen | Groot Scholtenhagen | 4,500 | Eddy Boerhof |
| JVC Cuijk | Cuijk | Sportpark De Groenendijkse | 3,000 | Ruud Kaiser |
| VV De Meern | Utrecht | Sportpark De Meern | 2,000 | Joël Titaley |
| OFC | Oostzaan | Sportpark OFC | 1,500 | Imdat Ilgüy |
| OJC Rosmalen | Rosmalen | Sportpark De Groote Wielen | 3,000 | David Vecht |
| Quick '20 | Oldenzaal | Vondersweijde | 7,000 | |
| Quick (H) | Den Haag | Sportpark Nieuw Hanenburg | 1,500 | Paul van der Zwaan |
| VV UNA | Veldhoven | Sportpark Zeelst | 1,000 | Mark Schenning |
| Jong Vitesse | NSC Papendal | 2,000 | Joseph Oosting[4] | |
| RKVV Westlandia | Naaldwijk | Sportpark De Hoge Bomen | 4,000 | Edwin Grünholz |
The numbers 15 and 16 from the 2017–18 Tweede Divisie and 3 (substitute) period winners of each of the 2017–18 Derde Divisie's, making a total of 8 teams, decide in a 2-round knockout system which 2 teams will play next season in the 2018–19 Tweede Divisie. The remaining 6 teams will play next season in the 2018–19 Derde Divisie.
| Club | Qualification | |
|---|---|---|
| Lisse | 15th in the Tweede Divisie | |
| TEC | 16th in the Tweede Divisie | |
| Jong Almere City | Winner of the First Period in the Derde Divisie Saturday | |
| Scheveningen | Winner of the Second Period in the Derde Divisie Saturday | |
| Jong Volendam | Winner of the Third Period in the Derde Divisie Saturday | |
| UNA | Winner of the First Period in the Derde Divisie Sunday | |
| JVC Cuijk | Winner of the Second Period in the Derde Divisie Sunday | |
| Quick (H) | 3rd in the Derde Divisie Sunday (Third Period won by the league champions) |
Jong Almere City and Scheveningen promoted to the 2018–19 Tweede Divisie.
Lisse and TEC relegated to the 2018–19 Derde Divisie.
The other teams remain in the 2018–19 Derde Divisie.
The numbers 15 and 16 from the 2017–18 Derde Divisie Saturday league and 3 (substitute) period winners of each of the two 2017–18 Hoofdklasse Saturday leagues, making a total of 8 teams, decide in a 2-round knockout system which 2 teams play next season in the 2018–19 Derde Divisie Saturday league. The remaining 6 teams play next season in the 2018–19 Hoofdklasse Saturday leagues.
The same applies for the 2017–18 Derde Divisie Sunday league and each of the two 2017–18 Hoofdklasse Sunday leagues.
See Promotion/relegation play-offs Derde Divisie and Hoofdklasse on the Hoofdklasse page