Epidermoid cyst of the presacral space is a rare benign congenital lesion which is lined with keratinized squamous epithelium. We describe the computed tomography(CT) and magnetic resonance (MR) imaging findings in a case of presacral epidermoid cyst in a 35-year-old woman. The lesion appeared on CT as a well defined cystic mass with a thin wall. MR imaging showed heterogeneously low signal intensity on T1-weighted images and heterogeneously high signal intensity on T2-weighted images.