| Competition: | Cypriot Fourth Division |
| Winners: | Olimpiada Neapolis FC APEAN Ayia Napa Tsaggaris Peledriou |
| Promoted: | APEAN Ayia Napa Tsaggaris Peledriou |
| Relegated: | Olympias Lympion ENAD Ayiou Dometiou Olympos Acheritou Zenonas Larnaca Digenis Agiou Nikolaou Kourio Episkopi |
| Prevseason: | 1988–89 |
| Nextseason: | 1990–91 |
| Season: | 1989–90 |
The 1989–90 Cypriot Fourth Division was the fifth season of the Cypriot fourth-level football league. The championship was split into three geographical groups, representing the Districts of Cyprus. The winners were:
The three winners were promoted to the 1990–91 Cypriot Third Division. Six teams were relegated to regional leagues.