Ninety-two samples of ceramics from Kommos in south-central Crete, covering the Middle Minoan periods MMI to MMIII have been analyzed by instrumental neutron activation using the SLOWPOKE reactor at the University of Toronto. The sherds represented three basic fabric types: a fine buff fabric, a stone tempered buff fabric, a coarse, stone tempered red fabric. Also included in the study were three sherds from nearby archaeological sites and six Kommos sherds which were archaeologically assessed as exhibiting atypical fabrics. The three fabric types were sortable into two distinct chemical groups, and two similar groups. Little temporal variation in chemical composition was found in the fine buff wares, and the atypical fabrics fitted neatly into three of the chemical groups.