A pen name is a name a writer publishes under instead of their real name, and it is legal, free and needs no registration: you simply put it on the book. Oxford Learner's Dictionaries defines it as "a name used by a writer instead of their real name". Its synonyms are nom de plume and pseudonym. A pen name hides you from readers. It does not hide you from the people who pay you, and that difference shapes most of the rules below.
What Is a Pen Name?
A pen name is the author name printed on the cover, the title page and the store listing when it differs from the author's legal name. The U.S. Copyright Office's Circular 32 defines a pseudonym as "a fictitious name that an individual author may use to identify him or herself to the public."
Three terms mean nearly the same thing:
| Term | What it means |
|---|---|
| Pen name | The plain English term for a writer's assumed name |
| Nom de plume | The same thing, in French words. Oxford says it was "formed in English from French words, to render the sense 'pen-name'", in the early 19th century |
| Pseudonym | Any assumed name, used by writers and others. The legal term in copyright law |
The Copyright Office draws one useful line. "Nicknames and abbreviated forms of legal names are not considered pseudonyms." Its own example: "J.K. Rowling" is an abbreviated name, and "Robert Galbraith" is a pseudonym.
What Are Some Famous Pen Names?
The best evidence for why writers use pen names comes from the writers themselves.
| Pen name | Real name | Why, from a first-hand source |
|---|---|---|
| Mark Twain | Samuel Clemens | Needed "a nom de guerre" as a new journalist |
| George Eliot | Mary Ann Evans | To keep her "incognito" |
| Currer, Ellis and Acton Bell | Charlotte, Emily and Anne Brontë | "Averse to personal publicity" |
| Lewis Carroll | Charles Lutwidge Dodgson | Needed a pseudonym for a magazine |
| Robert Galbraith | J.K. Rowling | To work "without hype or expectation" |
| J. D. Robb | Nora Roberts | To reach "a new and different group of readers" |
Mark Twain. In Life on the Mississippi (1883), chapter 50, Clemens says the name first belonged to a river pilot, Captain Sellers, who wrote river notes for the New Orleans Picayune and signed them "Mark Twain". "Mark twain" is a leadsman's call: the book glosses it as two fathoms. When Sellers died, Clemens writes, "I was a fresh new journalist, and needed a nom de guerre; so I confiscated the ancient mariner's discarded one." Historians doubt this account. The Shapell Manuscript Foundation notes that the name first appeared in the Territorial Enterprise on 3 February 1863, while Sellers was still alive, and that there is no evidence Sellers ever signed anything with it.
George Eliot. Mary Ann Evans wrote to her publisher John Blackwood on 4 February 1857: "I shall be resolute in preserving my incognito, having observed that a nom de plume secures all the advantages without the disagreeables of reputation." Her journal for 1857 records: "There was clearly no suspicion that I was a woman."
The Brontës. Charlotte Brontë explained the choice in her 1850 "Biographical Notice of Ellis and Acton Bell": "Averse to personal publicity, we veiled our own names under those of Currer, Ellis, and Acton Bell; the ambiguous choice being dictated by a sort of conscientious scruple at assuming Christian names, positively masculine, while we did not like to declare ourselves women". She added that they "had a vague impression that authoresses are liable to be looked on with prejudice".
Robert Galbraith. On her Galbraith website, Rowling says: "I really wanted to go back to the beginning of a writing career in this new genre, to work without hype or expectation and to receive totally unvarnished feedback." She now keeps the name "to keep the distinction from other writing".
J. D. Robb. The J. D. Robb site says Nora Roberts' agent compared the pseudonym to "Pepsi, Diet Pepsi, and caffeine-free Pepsi": one author, a new line of books, a separate group of readers. The publisher fully revealed the link with the twelfth book, Betrayal in Death (2001).
Why Do Authors Use Pen Names?
The reasons fall into five groups, and the famous cases above cover all of them.
- Privacy. A teacher writing dark thrillers, a nurse writing about the ward, anyone who wants their writing kept apart from their job or family. This was the Brontës' first reason.
- A new genre. A second name tells readers that this book is a different kind of book. Rowling and Roberts both did this.
- Bias. The Brontës feared readers would judge "authoresses" differently. Some writers still choose initials or a neutral name for this reason.
- A name that does not work on a cover. Too long, hard to spell, or too close to a famous author. Amazon KDP's own help page says: "If the primary contributor's name is similar to a popular author's name, consider using a pen name, middle name, or adding an initial."
- A fresh start. A writer whose earlier books did not sell can begin again without the old sales record attached to the name.
How Do You Choose a Pen Name?
Choose a name that fits the genre, is easy to say and spell, and is not already on the shelf. Work through these checks in order.
- Decide who the name is for. One genre, or everything you write? Readers follow a name, so one name per kind of book is the usual pattern.
- Make it fit the genre. A cosy mystery name and a military thriller name sound different. Look at the authors on your genre's bestseller list and notice the shape of their names.
- Make it easy to say and spell. Readers search by ear. If you have to spell it out loud, a reader will misspell it in the search box.
- Search the stores. Search Amazon, Apple Books and Goodreads for the exact name. A living author in your genre with the same or a similar name rules it out.
- Check a web address and social handles. You will want the name as a website and as an account on the platforms your readers use.
- Test it on a cover. Type it on a mock cover and shrink it to thumbnail size. Short names stay legible.
- Commit before you publish. On KDP the author field "cannot be changed once your book is published".
Is There a Pen Name Generator That Works?
A pen name generator gives you random names. The better method is the one famous authors used: build the name from something that is already yours. Each technique below has a real precedent.
| Technique | How it works | Precedent |
|---|---|---|
| Translate your own name | Turn your first names into another language and back | Charles Lutwidge became Carolus Ludovicus, then Carroll and Lewis |
| Rearrange your letters | Make an anagram of your names | Dodgson offered "Edgar Cuthwellis", formed from the letters of Charles Lutwidge |
| Use a name you have always liked | A childhood favourite or a family surname | Rowling: "When I was a child, I really wanted to be called 'Ella Galbraith'" |
| Borrow from someone close | A partner's or relative's first name | George Eliot took "George" from George Henry Lewes, according to her husband J. W. Cross |
| Borrow from your world | A word from your trade or your setting | Twain, from the river |
Dodgson's own list is a reminder that you need not decide alone. His nephew's 1898 biography records that he sent the editor Edmund Yates four options: Edgar Cuthwellis, Edgar U. C. Westhall, Louis Carroll and Lewis Carroll. "Mr. Yates chose the last."
Worked Example: Choosing a Pen Name
Margaret Oyelaran-Pryce teaches Year 6 in a small town. At night she writes cosy murder mysteries set in a seaside bakery. She wants three things: her pupils' parents not finding the books, a name that fits the shelf, and a name readers can type.
Her legal name fails the third test. It is long, and readers will get the hyphen wrong. She makes a list:
- Maggie Pryce. Her own nickname and half her surname. Short and warm. But colleagues know her as Maggie Pryce, so it fails the privacy test.
- Margery Bell. Her grandmother's first name and her childhood street, Bell Lane. It sounds right for a cosy. A store search finds no author by that name writing mysteries.
- M. B. Hale. Initials and a neutral surname. Clean, but it reads like a thriller writer, which sends the wrong signal to cosy readers.
She tests "Margery Bell" on a mock cover at thumbnail size, finds the web address free, and publishes. Her KDP account stays in her legal name so the royalties and tax forms reach her. Readers see Margery Bell. Her pupils' parents see nothing.
Is a Pen Name Legal, and Does It Affect Copyright?
A pen name is legal, and you own the copyright in your work whatever name is on it. The rules that matter are about records, not permission.
The name itself is not protected by copyright. Circular 32: "A pseudonym itself is not protected by copyright. Copyright protection is not available for names or short phrases."
Your real name must stay off the book for it to count as pseudonymous. "If the author's full name appears on the work or appears in the copyright notice, the work is not a pseudonymous work". That includes the copyright notice on the copyright page, so a notice that reads "© 2026 Margery Bell" keeps the work pseudonymous and one that reads "© 2026 Margaret Oyelaran-Pryce" does not.
The copyright term changes in the US. For a pseudonymous work created on or after 1 January 1978, copyright "expires 95 years from the year of publication or 120 years from the year of creation, whichever is shorter." If your legal name is in the Copyright Office's records, the term becomes "the life of the author plus seventy years."
US registration records are public. The Office encourages applicants to give the real name, but warns: "Registration records are open to the public. Do not disclose the author's real name or address in an application for a pseudonymous work if the author does not wish to make that information public." It will not remove a name once the certificate is issued. A real name can be added later by supplementary registration.
In the UK, the Copyright, Designs and Patents Act 1988 treats a work as of "unknown authorship" only if "it is not possible for a person to ascertain his identity by reasonable inquiry" (section 9(5)). Such a work is protected until 70 years from the end of the year it was made or, if it is made available to the public in that time, 70 years from the end of the year it first was (section 12(3)). Once the author's identity becomes known within that period, the normal term of the author's life plus 70 years applies (section 12(4)).
This is what the official sources say, not legal advice. For a contract or a dispute over a name, ask a lawyer.
How Do You Use a Pen Name on Amazon KDP?
KDP allows pen names directly. Its Authors & Contributors help page says: "You can use a pen name or pseudonym to publish your titles." Five points from that page are worth knowing before you set up a book.
- Real name in the account, pen name on the book. "If you use a pen name, make sure to enter your real name under your KDP account information so we can issue your payments and tax forms correctly."
- Readers do not see your real name. "When using a pen name your real name stays anonymous and is not published anywhere on our website."
- Keep it consistent. "You can use a pen name as long as it is appropriate and stays consistent throughout all of your work." KDP adds that Author Pages, Series Pages and format linking "rely on a consistent author name."
- Be ready to prove the rights. "After you publish, we may ask for a copy of the rights to your book."
- The primary author field is permanent. "Once your book is published, you won't be able to change your book's primary author field. You can create a new edition with the updated author name."
An Author Page is separate. KDP says the book must be published before you can create one, and points you to Author Central.
Does a Pen Name Need Its Own ISBN?
A changed author name needs a new ISBN. The International ISBN Agency's ISBN Users' Manual (7th edition, section 6.2) lists "author name" among the changes that require a separate ISBN. If you publish a book under your own name and later reissue it under a pen name, that is a new ISBN for each format. In self-publishing, the same manual says, "the author is treated as the registrant/publisher". Whether you need an ISBN at all depends on where the book is sold.
How Do You Manage More Than One Pen Name?
Treat each pen name as a separate author with its own shelf.
- One name per readership. Roberts kept romance and suspense apart. Rowling kept crime apart.
- Open or closed. A closed pen name is a secret. An open one is publicly linked to you, like J. D. Robb after 2001, and lets your existing readers follow you across.
- One back list per name. Each book's Also by the Author page should list only the books under that name, or it gives the secret away.
- One email and website per name. Your contact details are another place your real name can show through.
- One record of who is who. Keep a private note of which titles, ISBNs and accounts belong to which name.
How Do You Set a Pen Name in Deckle?
Deckle is a novel-writing app for Windows, Mac and Linux. Each Deckle project keeps its own author name, so each book carries whichever pen name it was written under.
- Open the book's project and choose Export from the File menu (Ctrl+E on Windows and Linux, Cmd+E on Mac).
- Open the Metadata tab. Under Book Details, type the pen name in Author. It is "Saved with the project and used in every export: EPUB, PDF, and DOCX."
- Add a title page and a copyright page from the Binder: click Add to Draft, then Front Matter, then Title Page and Copyright. The title page prints the author name from Metadata, and the copyright notice reads "Copyright ©" followed by the year and the same name.
- To change the notice's wording, open Styles (the palette icon), switch to Advanced, choose Special pages, then Copyright. Preset offers Simple, Full legal and Creative Commons, and Include copyright year turns the year on or off.
- If you send the book to agents, put your legal name and address in Contact info on the same Metadata tab, then pick DOCX, Word, and turn on Standard Manuscript Format in Options. The title page then carries your legal name in the contact block and "by" your pen name in the byline. The running header uses the last word of the Author field, so it shows the pen name's surname, which matches the cover. That is the layout agents expect in standard manuscript format.
- For a back list, add Back Matter > Also by the Author and list that pen name's books.
The Author field also fills the EPUB's author metadata, so stores and e-readers show the pen name. Comments you add are signed with the same name, which matters if you send a Word file to an editor who knows you by your pen name. A File > Export as Template never carries the author name, so one template can serve every pen name you write under.
Common Mistakes
- Putting your real name in the copyright notice. Under US law it stops the work being pseudonymous, and it shows readers who you are.
- Using the pen name for your KDP account. The account needs your legal name for payments and tax forms. The pen name goes on the book.
- Changing your mind after publishing. KDP's primary author field is locked once the book is live, and a new author name needs a new ISBN.
- Picking a name close to a famous author's. KDP itself warns against it, and readers will find the other author first.
- Leaking the name through the back list. An Also by page, a website or an email address with your real name undoes a closed pen name.
- Calling an abbreviated name a pen name. "J.K. Rowling" is an abbreviation, the Copyright Office says, and "Robert Galbraith" is the pseudonym.
- Repeating the myths. The Brontës did not choose masculine names: Charlotte says they chose "ambiguous" ones on purpose. The line that "Eliot was a good, mouth-filling, easily pronounced word" is J. W. Cross reporting what his wife told him, not her own letter. "Lewis Carroll" was chosen by his editor from four names Dodgson offered. And Twain's story of taking the name from a dead river pilot does not fit the dates: Sellers was alive when the name first appeared.
FAQ
Is it legal to write under a pen name?
Yes. Writers have done it for centuries, KDP accepts it, and the US Copyright Office registers works under a pseudonym. You own the copyright whatever name is on the cover.
Do you have to register a pen name?
No. You put the name on the book. Copyright registration is optional, and in the US the Copyright Office lets you register under a pseudonym.
Can you use a pen name on Amazon KDP?
Yes. KDP says, "You can use a pen name or pseudonym to publish your titles." Your legal name goes in your account for payments and tax.
What is the difference between a pen name and a pseudonym?
A pen name is a pseudonym used by a writer. Pseudonym is the wider term and the one used in copyright law.
Can a pen name be traced to me?
It can through public records. A US copyright registration that gives your real name is public and cannot be withdrawn. KDP does not publish your real name on its website.
Can I change my pen name after publishing?
On KDP, not on the existing book. You publish a new edition under the new name, which needs a new ISBN.
Is "nom de plume" French?
Its words are French, but Oxford says the phrase was formed in English in the early 19th century. Mark Twain called his a "nom de guerre".
Sources
Retrieved 1 November 2026.
- U.S. Copyright Office, Circular 32: Pseudonyms, revised March 2021.
- Amazon KDP, Authors & Contributors.
- International ISBN Agency, ISBN Users' Manual, 7th edition (2017), section 6.2 "Changes to publications" and the section on self-publishing.
- Copyright, Designs and Patents Act 1988, section 9 and section 12, legislation.gov.uk.
- Oxford Learner's Dictionaries, pen name and nom de plume.
- Mark Twain, Life on the Mississippi (1883), chapter 50 (Project Gutenberg 245).
- J. W. Cross, George Eliot's Life, as Related in Her Letters and Journals, vol. 1 (1885), letter to John Blackwood, 4 February 1857 (Project Gutenberg 43043).
- Charlotte Brontë, "Biographical Notice of Ellis and Acton Bell" (1850), as quoted in Elizabeth Gaskell, The Life of Charlotte Brontë (1857), vol. 1, chapter XIV (Project Gutenberg 1827).
- Stuart Dodgson Collingwood, The Life and Letters of Lewis Carroll (1898), chapter II (Project Gutenberg 11483).
- Shapell Manuscript Foundation, Mark Twain calling card, on the first use of the name and the Sellers story.
- J.K. Rowling, About Robert Galbraith, robert-galbraith.com.
- JD Robb's Bio and FAQ, jdrobb.com.