A mononym is a name composed of only one word. An individual who is known and addressed by a mononym is a mononymous person.
A mononym may be the person's only name, given to them at birth. This was routine in most ancient societies, and remains common in modern societies such as in Afghanistan,[1] Bhutan, Indonesia (especially by the Javanese), Myanmar, Mongolia, Tibet,[2] and South India.
In other cases, a person may select a single name from their polynym or adopt a mononym as a chosen name, pen name, stage name, or regnal name. A popular nickname may effectively become a mononym, in some cases adopted legally. For some historical figures, a mononym is the only name that is still known today.