A comprehensive faunistic research was carried out in order to detect Eriophyoid mites in İzmir. As a result of the research seventeen species of eriophyoid mites were detected for the mite fauna of Turkey. The samples were collected on fruit and ornamental plants in İzmir province, Turkey 2021. The identified eriophyid species are Aceria erinea Nalepa, 1891, Aceria avanensis Bagdasarian, 1970, Aceria salicina Nalepa, 1911, Aceria filiformis Nalepa, 1891, Aceria ilicis Canestrini, 1890, Aceria massalongoi Canestrini,1890, Aceria oleae Nalepa, 1900, Aceria sheldoni Ewing, 1937, Eriophyes pyri Pagenstecher, 1857, Eriophyes tiliae Nalepa, 1890, Aculus fockeui Nalepa & Trouessart, 1891, Phyllocoptes pruni Soliman & Abou-Awad, 1979, Aculus schlechtendali Nalepa 1890, Aculus mogeri Farkas, 1960, Colomerus vitis Pagenstecher, Calepitrimerus vitis Nalepa, 1905, Rhyncaphytoptus ficifoliae Keifer, 1939. Information on hosts, damage symptoms and geographical distribution of these species are given in the article.