Clear cell syringoma (CCS), an unusual histologic variant form of syringoma, has two distinct features: formed by cells with vacuolated cytoplasm as a result of glycogen accumulation and a high association with diabetes mellitus. The main clinical feature of clear cell syringoma is a small asymptomatic papule on the face that is clinically indistinguishable from ordinary syringoma. A 70 year-old man visited our clinic complaining of erythematous scaly patches with yellowish crust on glabella which is resistant to a treatment with a topical steroid. He had no medical history of other disease. Because the typical skin lesions developed on the typical site of the face, biopsy was performed with suspicion of seborrheic dermatitis. Skin biopsy from the lesion showed numerous, variable-sized, well-defined nests composed of clear cells in the dermis. Based on the histopathological findings, the diagnosis of clear cell syringoma was made. Our case was difficult to suspect syringoma clinically because it was obscured by the seborrheic dermatitis lesions. In our knowledge, only 7 cases of CCS have been reported in Korea so far. There is a possibility that clear cell syringomas have been underreported due to their concurrence of many other skin disease, such as seborrheic dermatitis. We herein report a case of CCS on glabella masquerading as seborrheic dermatitis.