Alias may refer to: Pseudonym, a fictitious name that a person or group assumes for a particular purpose. Pen name, a pseudonym adopted by an author and printed on the title page or by-line of their works in place of their real name. Stage name, a pseudonym used by performers and entertainers. Nickname, a substitute for the proper name of a familiar person, place or thing. Sobriquet, a familiar name used in place of a real name without the need for explanation; it may become more familiar than the original name.
https://en.wikipedia.org/wiki/Alias