In this study, antibiogram results of acinetobacterspecies that are identified on 647 patients that have stayed at intensive care units of gaziosmanpaşa university faculty of medicine hospital in between 2011-2018 were evaluated by vitek-2 system. as result of this evaluations, the most sensitive antimicrobial agents against acinetobacter species are colistins with sensivity rate %98,6. the second ones are tigecyclins with sensivity rate % 75,6 .