Wolffian duct is an anatomical term to describe the canal that runs from the floor of the mouth to the back of the pharynx. The canal is formed by fibrous tissue that connects the floor of the mouth and the posterior wall of the pharynx and is one of the important components of the skeletal attachment of the tongue. The Wolffian ducts play an important role in the production of tongue sounds, maintain proper distribution of saliva, and protect the tongue from injury during complex repetitive tongue movements and tooth development. Understanding the anatomy of the Wolffian duct is extremely important for dentists and ENT doctors who may encounter duct obstruction as a result of dental disease and airway inflammation. It is important to note that many people can be carriers of the Wolffian duct, since it is a normative anatomical element of the human body.