Ectodermal dysplasia is a large hereditary group of disorders which is usually manifested as X-linked recessive Hypohidrotic Ectodermal Dysplasia (HED) and has a full expression in males, whereas females show little to no signs of the disorder. It is a genetic disorder affecting the development or function of the teeth, hair, nails and sweat glands. The two most common types of Ectodermal Dysplasias are the X-linked recessive Hypohidrotic Ectodermal Dysplasia (Christ-Siemens-Touraine syndrome), and Hidrotic Ectodermal Dysplasia (Clouston syndrome). Hypohidrotic ectodermal dysplasia is characterized by hypodontia, hypotrichosis and hypohydrosis. Here in, we report case series of this rare entity of ectodermal dysplasia in a 15year old female and 42 years old male showing characteristic features of hypodontia,hypohidrosis, hypotrichosis.