The Calcifying Epithelial Odontogenic Tumor (CEOT) was first described by Pindborg as a distinct entity in 1955. Odontogenic tumors are derived from epithelial, ectomesenchymal and mesenchymal elements that have been a part of the tooth-forming apparatus. Of all the odontogenic tumors, calcifying epithelial odontogenic tumor accounts for 1% of the cases. There is no sex predilection with a 2:1 predilection for the mandible. CEOT is mostly found in the premolar or molar region. Clinically calcifying epithelial odontogenic tumor typically presents as a slow growing intra-osseous, expansile, painless mass. It is often locally invasive. Most often it is associated with an impacted tooth and remains asymptomatic. Although most of CEOTs are primarily intra-osseous however an extra-osseous counterpart of CEOT is also known to occur and first reported by Pindborg in 1966. This article presents a review of this unique and interesting tumor of jaws.