In this study we aimed to examine SS strains of Enterobacter obtained from various clinical materials sent to Microbiology and Clinical Microbiology laboratory Yüzüncü Yıl University Faculty of Medicine in two years periods retrospectively because of the importance of infections Enterobacteriaceae have recently increased. 38 strains 38(%44.7) of 85 Enterobacter strains were grown materials sent from pediatric clinic, 11 (12.9 %) from Urology clinic, 7 (8.2 %) from Orthopedic Clinic, 6 (7.2 %) Chest Diseases Clinic, 5 (5.9 %) from Ear Throat Nose Clinic, 5 (5.9 %) from General Surgery, 5 (5.9 %) from Internal Medicine clinic, 4 (4.7 %) from Gynecology and Obstetrics clinic, 3 (3.5 %)Physical Therapy and Rehabilitation Clinic and 1 (1.2 %) from Pediatrics Surgery Clinic or outpatients clinics. Fifty five strains (64.7 %) belonged to E. cloacae, 14 strains (16.5 %) to E. aerogenes, 11 (12.9 %) to E. asburiae and it was established that the isolation sites were most frequently respiratory and urinary systems, then wound, blood, ear and intraabdominal materials and rarely cerebrospinal fluid, eye and vaginal secretions. Examination of antimicrobial susceptibility revealed that the most strains were resistant to ampicillin and most of the cephalosporins and generally susceptible to amikacin, imipenem, norfloxacin and ciprofloxacin.