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A pseudonym is "the often fanciful name[] that people choose for themselves when interacting on the Internet."[1]

A pseudonym is

A name assumed by an individual in some context, unrelated to the individual's personal names known by others in that context, with an intent of not revealing the individual's identities associated with his or her other names. Pseudonyms are often not unique.[2]


“Many usernames are pseudonyms, known as ‘handles,’ which provide users with a distinct online identity and preserve anonymity.”[3] “By using a pseudonym, a person who posts or responds to a message on an Internet bulletin board maintains anonymity.”[4]


  1. Doe v., Inc., 140 F. Supp. 2d 1088, 1090 (W.D. Wash. 2001) (full-text).
  2. Privacy Considerations for Internet Protocols, at 10.
  3. American Library Ass’n v. Pataki, 969 F. Supp. 160, 165 (S.D.N.Y. 1997) (full-text).
  4. Doe, 140 F. Supp. 2d at 1090.

See also[]