Roseomonas is a pink-pigmented, nonfermentative, oxidative, Gram-negative coccobacilli that has clinical importance as opportunistic pathogen which can lead to infections especially in immunosuppressed individuals. It is relatively less reported in many centers. These microorganisms are detected after several days growth in culture environment, and typical pink, mucoid colonies are detected. We are reported a case of cranioplasty infection that took place in a patient with with cranial abscess formation due to Roseomonas gilardii at Izmir University School of Medicine Medicalpark Hospital.