A media proprietor or media mogul refers to a successful entrepreneur or businessperson who controls, through personal ownership or via a dominant position in any mass media related company or enterprise consumed by a large number of individuals. Those with significant control, ownership, and influence of a large company in the mass media may also be called a tycoon, baron, or business magnate.
In the United States, newspaper proprietors first became prominent in the 19th century with the development of mass circulation newspapers. In the 20th century, proprietorship expanded to include ownership of radio and television networks, as well as film studios, publishing houses, and more recently internet and other forms of multimedia companies. Reflecting this, the term "press baron" was replaced by "media baron", and the term "media mogul" was popularized.