This repository includes data and datasets derived and adapted from the Cyprus Database of Alien Species (CyDAS) (https://ris-ky.info/cydas), an openly accessible, online, dynamic platform providing informational resources on alien species on the island of Cyprus. The platform includes information on 1,293 terrestrial, freshwater and marine introduced taxa, with species profiles being constantly updated to keep track of new arrivals. The CyDAS aims to catalogue and supplement our knowledge on the alien species of Cyprus; to develop and enhance early warning and rapid response systems; to raise public awareness of the risks posed by the IAS subset; to strengthen and enhance engagement and public participation in surveys in the field of biological invasions; and to inform IAS policy. CyDAS is a free, online database and we would like to other encourage researchers and decision-makers to provide information on IAS. For further information on the data refer to the READ ME file. Please cite these data according to the assigned DOI as well as according to the citation of the data paper on Scientific Data.