Cataloguing and cataloging both mean making a list of items in a logical order. People use these words when organizing books, products, records, files, or collections.
The confusion comes from the difference between British and American English spelling. Both forms are correct, but each follows a different writing style. Choosing the wrong spelling for your audience can make your writing look inconsistent.
In this guide, you will learn the difference between cataloguing and cataloging, their history, British and American spelling rules, common mistakes, everyday examples, usage trends, and which spelling is best for your readers.
Quick Answer
Both cataloguing and cataloging are correct.
- Cataloging is the standard spelling in American English.
- Cataloguing is the standard spelling in British English.
- Both words mean creating or arranging a catalog or list of items.
Examples
- The librarian is cataloging the new books. ✅
- The librarian is cataloguing the new books. ✅ (British English)
The Origin of Cataloguing or Cataloging
The word comes from the Greek word katalogos, meaning “a list” or “register.” It later entered Latin and then French before becoming part of English as catalogue.
British English kept the original spelling catalogue, so the present participle became cataloguing.
American English simplified catalogue to catalog, creating the verb catalog and the form cataloging. The meaning stayed the same, but the spelling became shorter.
British English vs American English Spelling
British English uses catalogue as the base word and cataloguing as the present participle.
American English uses catalog as the base word and cataloging as the present participle.
| British English | American English |
|---|---|
| catalogue | catalog |
| cataloguing | cataloging |
| catalogued | cataloged |
Examples
| British English | American English |
|---|---|
| She is cataloguing old maps. | She is cataloging old maps. |
| They catalogued every book. | They cataloged every book. |
| The museum is cataloguing its collection. | The museum is cataloging its collection. |
Which Spelling Should You Use?
Choose the spelling based on your audience.
- Use cataloging for readers in the United States.
- Use cataloguing for readers in the United Kingdom, Australia, New Zealand, and many Commonwealth countries.
- If your audience is international, choose one style and use it consistently.
- Follow your employer’s, school’s, or publisher’s style guide whenever possible.
Common Mistakes with Cataloguing or Cataloging
Many writers accidentally mix British and American spelling.
| Incorrect | Correct |
|---|---|
| Catalogue with cataloging in the same document | Use one spelling style |
| Cataloguing for an American publication | Cataloging |
| Cataloging in a British publication | Cataloguing |
| Catalogingue | Cataloguing or Cataloging |
Tips
- Decide which English style you are using before writing.
- Do not mix catalogue and catalog forms.
- Keep your spelling consistent throughout the document.
Cataloguing or Cataloging in Everyday Examples
“Please finish cataloging the inventory today.”
“Please finish cataloguing the inventory today.” (British English)
News
“The museum has started cataloging thousands of historical objects.”
Social Media
“I’m cataloging my book collection this weekend.”
“I’m cataloguing my vinyl records today.”
Formal Writing
“The research team is cataloging all collected samples.”
“The research team is cataloguing all collected samples.”
Cataloguing or Cataloging – Google Trends & Usage Data
Search data shows that cataloging is more common worldwide because American English dominates many websites and digital platforms.
Regional usage generally looks like this:
| Country | Common Spelling |
|---|---|
| United States | Cataloging |
| Canada | Cataloging (more common) |
| United Kingdom | Cataloguing |
| Australia | Cataloguing |
| New Zealand | Cataloguing |
| Ireland | Cataloguing |
Academic libraries and publishers usually follow the spelling style of their country or institution.
Cataloguing or Cataloging Comparison Table
| Feature | Cataloguing | Cataloging |
|---|---|---|
| Correct spelling | Yes | Yes |
| American English | No | Yes |
| British English | Yes | No |
| Base word | Catalogue | Catalog |
| Meaning | Making a catalog | Making a catalog |
| International use | Common in Commonwealth countries | More common globally |
RAQS
Is cataloguing or cataloging correct?
Both are correct. The spelling depends on whether you use British or American English.
Which spelling is used in the United States?
American English uses cataloging.
Which spelling is used in the United Kingdom?
British English uses cataloguing.
Do cataloguing and cataloging have different meanings?
No. Both mean creating or organizing a catalog.
Why does British English use cataloguing?
British English keeps the base word catalogue, so the verb becomes cataloguing.
Which spelling should I use for international readers?
Cataloging is usually more familiar worldwide, but consistency is more important than the spelling you choose.
Can I mix cataloguing and cataloging in one article?
No. Choose one spelling style and use it throughout your writing.
Conclusion
Both cataloguing and cataloging are correct and have the same meaning. The only difference is the variety of English you are using. Choose cataloging for American English and cataloguing for British English and many Commonwealth countries.
The best writing practice is to stay consistent from the beginning to the end of your document. If you regularly write about spelling differences, you may also enjoy reading our guide on organise or organize to learn another common British and American English variation.
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