Abstract :Calcifying odontogenic cyst or Gorlin cyst, was first described by Gorlin. The World Health Organization classified it as calcifying cystic odontogenic tumor in 2005. The most recent classification on the other hand, includes the entity under developmental cysts again. It represents less than 1% of all odontogenic tumors. Calcifying odontogenic cyst has a unique structure, so the variation in clinical, radiographic, and histologic findings makes the treatment decision difficult for these lesions. Histologically calcifying cystic odontogenic cyst consists of ameloblastoma -like odontogenic epithelium with reverse polarization and calcifying ghost cells overlying a mature connective tissue with odontogenic rest. This review consists of seven cases on calcifying cystic odontogenic cysts. All of them were from mandible, the age ranging from 50-70 years old. Only one lesion showed multilobular radiographic features.