The 1989–90 Cypriot Cup was the 48th edition of the Cypriot Cup. A total of 71 clubs entered the competition. It began on 29 November 1989 with the first preliminary round and concluded on 9 June 1990 with the final which was held at Tsirio Stadium. Nea Salamis won their 1st Cypriot Cup trophy after beating Omonia 3–2 in the final.