This is a list of pseudonyms, in various categories.
A pseudonym is a name adopted by a person for a particular purpose, which differs from his or her true name. A pseudonym may be used by social activists or politicians for political purposes or by others for religious purposes. It may be a soldier's noms de guerre, an author's pen name, a performer's stage name, or an alias used by visual artists, athletes, fashion designers, or criminals. Pseudonyms are occasionally used in fiction such as by superheroes or other fictional characters.