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 their 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 nom de guerre or an author's nom de plume. It may be 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.
General list
Other lists
Maternal family names
Pen names
Porn names
Stage names
Fictional pseudonyms
Superhero genre
Iron Man (Anthony Edward "Tony" Stark) – Marvel Comics
Captain America (Steven Grant "Steve" Rogers) – Marvel Comics
The Hulk (Dr. Robert Bruce Banner) – Marvel Comics
Spider-Man (Peter Benjamin Parker) – Marvel Comics
Black Cat (Felicia Hardy) – Marvel Comics
Doctor Octopus (Dr. Otto Gunther Octavius) - Marvel Comics
Wolverine (Logan, James Howlett) – Marvel Comics
Amazing-Man (William Blake "Will" Everett) – DC Comics
Amazing-Man (William Blake "Will" Everett III) – DC Comics
Amazing-Man (Markus Clay) – DC Comics
Amethyst, Princess of Gemworld (Amy Winston) – DC Comics
Animal Man (Bernhard "Buddy" Baker) – DC Comics
Aquagirl (Lorena Marquez) – DC Comics
Argus (Nick Kelly) – DC Comics
Atom (Albert "Al" Pratt) – DC Comics
Aqualad (Garth) – DC Comics
Aqualad (Kaldur'ahm / Jackson Hyde) – DC Comics
Aquaman (Arthur Joseph Curry) – DC Comics
Superman (Kal-El / Clark Joseph Kent) – DC Comics
Batgirl (Barbara Gordon) – DC Comics
Batgirl (Cassandra Cain) – DC Comics
Batman (Bruce Wayne) – DC Comics
Catwoman (Selina Kyle) – DC Comics
Catwoman (Patience Phillips) – 2004 film
Huntress (Helena Wayne) – DC Comics
Huntress (Helena Bertinelli) – DC Comics
The Penguin (Oswald Chesterfield Cobblepot) – DC Comics
The Riddler (Dr. Edward Nigma) – DC Comics
Rorschach (Walter Joseph Kovacs) – Watchmen (Alan Moore graphic novel)
The Flash (Jason Peter "Jay" Garrick) – DC Comics
The Flash (Bartholomew Henry "Barry" Allen) – DC Comics
The Flash (Wallace Rudolph "Wally" West) – DC Comics
The Flash (Bartholomew Henry "Bart" Allen II) – DC Comics
Wonder Woman (Princess Diana of Themyscira / Diana Prince) – DC comics
Other fictional characters
Lord Voldemort (Thomas Marvolo "Tom" Riddle) – Harry Potter series
Aramis (Henri d'Aramitz, le Chevalier d'Herblay) – The Three Musketeers
Scarlet Pimpernel (Sir Percy Blakeney)
Athos (Armand de Sillègue d'Athos d'Autevielle, Le Comte de La Fère) – The Three Musketeers
Demosthenes (Valentine Wiggin) – Ender's Game series – OSC