Background: Cutaneous sinus fistula of facial skin has a wide range of etiologies, although typically of odontogenic origin. Odontogenic sinus fistula appears as dimpling or a nodule with purulent discharge, usually in the chin or jaw. Clinical symptoms of facial skin fistula without dental problems can lead to misdiagnosis. Objectives: The purpose of this study was to investigate the clinical characteristics of patients with odontogenic cutaneous fistulas. Methods: This retrospective observational study was performed at Chungbuk National University Hospital by analyzing patients who visited from April 1994 to September 2014. Following clinical and radiographic examinations, the paths and origins of sinus fistulas were determined. Investigated factors were gender, age, morphology, location, originating tooth, time to evolution, recurrence, and treatment method. Results: Thirty-three patients were examined during the investigation period. Thirty four fistulas were diagnosed as odontogenic cutaneous fistulas. The most common morphology was dimpling. The most common site was the mandibular body related to mandibular molars. Time to evolution ranged from 1.5 to 144 weeks. Surgical fistulectomy and/or tooth treatment were performed in all cases. None showed signs of recurrence. Conclusion: Extraoral and dental examinations are required to make a diagnosis of odontogenic cutaneous fistula. Thus, cooperation between dermatologists and dentists is essential.