A pseudonym (m/) or alias (s/) is a name that a person or group assumes for a particular purpose, which can differ from their first or true name (orthonym).[1]

Pseudonyms include stage names and user names, ring names, pen names, nicknames, aliases, superhero or villain identities and code names, gamer identifications, and regnal names of emperors, popes, and other monarchs. Historically, they have often taken the form of anagrams, Graecisms, and Latinisations, although there are many other methods of choosing a pseudonym.[2]

Pseudonyms should not be confused with new names that replace old ones and become the individual's full-time name. Pseudonyms are "part-time" names, used only in certain contexts – usually adopted to hide an individual's real identity, as with writers' pen names, graffiti artists' tags, resistance fighters' or terrorists' noms de guerre, and computer hackers' handles. Actors, musicians, and other performers sometimes use stage names, for example, to mask their ethnic backgrounds.

In some cases, pseudonyms are adopted because they are part of a cultural or organisational tradition: for example devotional names used by members of some religious institutes, and "cadre names" used by Communist party leaders such as Trotsky and Lenin.

A pseudonym may also be used for personal reasons: for example, an individual may prefer to be called or known by a name that differs from their given or legal name, but is not ready to take the numerous steps to get their name legally changed; or an individual may simply feel that the context and content of an exchange offer no reason, legal or otherwise, to provide their given or legal name.

A collective name or collective pseudonym is one shared by two or more persons, for example the co-authors of a work, such as Ellery Queen, Nicolas Bourbaki. or James S. A. Corey.


The term is derived from the Greek ψευδώνυμον (pseudṓnymon), literally "false name", from ψεῦδος (pseûdos), "lie, falsehood"[3] and ὄνομα (ónoma), "name".[4]

Other Languages
Afrikaans: Skuilnaam
Alemannisch: Pseudonym
العربية: اسم مستعار
aragonés: Pseudonimo
বাংলা: ছদ্মনাম
български: Псевдоним
བོད་ཡིག: འགྱུར་མིང་།
bosanski: Pseudonim
català: Pseudònim
Чӑвашла: Хушма ят
čeština: Pseudonym
dansk: Pseudonym
Deutsch: Pseudonym
Ελληνικά: Ψευδώνυμο
emiliàn e rumagnòl: Scutmâj
español: Alias
Esperanto: Pseŭdonimo
euskara: Izengoiti
français: Pseudonyme
Frysk: Skûlnamme
furlan: Pseudonim
galego: Pseudónimo
한국어: 가명
հայերեն: Գրական անուն
hrvatski: Pseudonim
Bahasa Indonesia: Nama samaran
íslenska: Dulnefni
italiano: Pseudonimo
עברית: שם עט
ქართული: ფსევდონიმი
қазақша: Бүркеншік ат
Кыргызча: Псевдоним
Latina: Pseudonymum
latviešu: Pseidonīms
Lëtzebuergesch: Pseudonym
lietuvių: Slapyvardis
lumbaart: Pseudonòm
македонски: Псевдоним
Bahasa Melayu: Nama samaran
монгол: Нууц нэр
Nederlands: Pseudoniem
नेपाली: छद्मनाम
日本語: 偽名
Nordfriisk: Pseudonym
norsk: Pseudonym
norsk nynorsk: Pseudonym
occitan: Pseudonim
олык марий: Алмашлӱм
Piemontèis: Stranòm
polski: Pseudonim
português: Pseudónimo
română: Pseudonim
Runa Simi: Mut'i
русский: Псевдоним
Scots: Pseudonym
shqip: Pseudonimi
sicilianu: Pseudònimu
සිංහල: ආරූඪ නාමය
Simple English: Pseudonym
سنڌي: عرف
slovenčina: Pseudonym
српски / srpski: Pseudonim
srpskohrvatski / српскохрватски: Pseudonim
suomi: Salanimi
svenska: Pseudonym
Tagalog: Alyas
татарча/tatarça: Тәхәллүс
українська: Псевдонім
اردو: عرف
vèneto: Pseudonimo
Tiếng Việt: Biệt hiệu
walon: Fås no
粵語: 化名
中文: 化名