Leiomyoma is a benign smooth muscleneoplasm that rarely becomes malignant. It can occur in any organ of the human body that contains smooth muscles, but the most common forms occur in female genitourinary organs, including the uterus, gastrointestinal organs, including the small bowel and the esophagus and the skin. It rarely occurs in the head and neck area, including the sinonasal cavity. When it occurs in the nasal cavity, its clinical symptoms include nasal obstruction, nasal discharge, nasal bleeding, and pain. We describe herein a case of a 55-year-old man with a leiomyoma in his right inferior nasal turbinate. Transnasal endoscopic excision and paranasal sinus CT were performed. A soft tissue mass on the right inferior turbinate was confirmed from the paranasal sinus CT, and the pathological results revealed a vascular leiomyoma.