Requester and requestor both mean a person or organization that makes a request. Requester is the usual spelling, and requestor is an accepted variant. Merriam-Webster lists both forms, so neither is a mistake. In everyday writing, requester is the safer choice.
The two words mean the same thing, but their habits differ. Requestor appears in some technical documentation and forms, while requester is the form Merriam-Webster and Dictionary.com list first. This guide defines each spelling, compares them, gives examples, and shows how to choose one and then use it consistently. It also explains requestee, the word for the person who is being asked.
Comparison Overview
Both spellings are correct. Requester is the better default for general writing, and requestor is a recognized variant you will often meet in technical documentation and on some forms.
| Feature | Requester | Requestor |
| Meaning | A person or organization that makes a request | The same |
| Dictionary status | Main form in Dictionary.com; listed first by Merriam-Webster | Listed as a variant by both |
| Typical setting | General writing, news reports, customer support | Technical documentation, software, some forms |
| Plural | requesters | requestors |
| Best use | Default choice when no rule applies | When a style guide, form, or product uses it |
The real issue is consistency, not correctness. Choose one spelling and keep it throughout a document.
Definition of Requester
A requester is a person or organization that asks for something. Dictionary.com defines it in exactly these broad terms, and Wiktionary extends the idea to anything, not only a person, that makes a request.
The word is a noun formed from the verb request plus the agent ending -er. It also has a computing sense: in some graphical interfaces, a requester is a dialog box that asks the user to choose an option, such as a file requester.
Example: The requester received a reply within two days.
Definition of Requestor
A requestor is the same word spelled with the -or ending. Merriam-Webster and Dictionary.com both present it as a variant of requester.
Requestor also has a technical use. Pega’s documentation defines a requestor as the processing and data associated with a user of its platform, whether a guest or a logged-in user. That meaning belongs to the product, not to ordinary English.
Example: The requestor attached a copy of the invoice to the form.
Is Requestor a Word?
Yes. Requestor is a recognized English word, not a typo. Merriam-Webster records it as an alternative spelling of requester.
Some dictionaries list it as a variant inside the requester entry instead of giving it a separate entry. That makes it legitimate but secondary. English agent nouns end in either -er or -or, and no simple rule decides which ending a given word takes, which is why pairs like this exist.
Main Differences Between Requester and Requestor
There is no difference in meaning. The differences are matters of habit and convention:
- Spelling: requester ends in -er, and requestor ends in -or.
- Dictionary status: requester is the lead form, and requestor is the variant.
- Convention: requester is the default in general prose, while requestor persists in technical documents and some forms.
- Pronunciation: the two are pronounced alike, and Merriam-Webster gives a single pronunciation for both.
Some websites claim that requestor signals more authority or a more formal process. Dictionary entries do not support that idea.
Requester or Requestor in UK English
Writers in the UK can use either spelling. Merriam-Webster and Wiktionary do not label either form as British or American. Unlike colour and color, this pair is not recorded as a regional difference in the dictionaries consulted for this guide.
If you write for a UK organisation, follow its house style. Example: The requester must supply two forms of identification.
Grammar Guide
Requester and requestor behave identically in grammar. Everything below applies to both spellings.
How each term is used in sentences
Both are countable nouns, and both are agent nouns: they name the person who performs the action of a verb, here request. They can act as a subject, an object, a possessive, or a noun modifier.
- Subject: The requester completes the first section.
- Object: The team contacted the requester by phone.
- Possessive: The requestor’s reference number appears at the top.
- Plural possessive: All requesters’ names stay private.
- Noun modifier: Requester details are stored securely.
Common mistakes learners make
- Mixing spellings in one document.
- Incorrect: The requester signs below, and the requestor’s address goes above.
- Correct: The requester signs below, and the requester’s address goes above.
- Why: Two spellings in one document look like an error even though each is valid.
- Using the wrong word for the person being asked.
- Incorrect: The requester reviewed the application sent to her.
- Correct: The requestee reviewed the application sent to her.
- Why: The requester asks. The requestee is asked.
- Dropping the apostrophe in the possessive.
- Incorrect: The requesters name is missing.
- Correct: The requester’s name is missing.
- Adding an apostrophe to a plain plural.
- Incorrect: The requestor’s must sign the form.
- Correct: The requestors must sign the form.
Simple rules to remember
- Requester and requestor share one meaning and one grammar.
- Use a requester unless a rule, label, or existing document says otherwise.
- Match the spelling of your source, form, or software.
- Use one spelling per document.
- The person who is asked is the requestee.
Quick tips for writing and speaking
- Do not worry about speech. The two spellings sound the same, so listeners cannot hear a difference.
- When you spell the word aloud, say it ends in e-r or o-r.
- Before publishing, search the document for the spelling you did not choose.
- If you are unsure, rephrase: the person who made the request.
- In templates, set the label once and reuse it everywhere.
When to Use Each One
Use requester when:
- You are writing for a general audience, such as emails, articles, or reports.
- You have no style guide or template to follow.
- You are describing someone who submits a ticket, form, or records request.
Use requestor when:
- Your organization’s style guide or template uses it.
- You are naming a field, term, or label in a product that uses it, such as Pega’s platform documentation.
- You are adding to an existing document that already uses a requestor.
When NOT to Use Each One
- Do not change a quoted label. If a form, screenshot, or product screen says Requestor, copy it exactly, even if you normally write requester.
- Do not assume the requestor is more formal or more legal. Formality comes from tone and wording, not the ending.
- Do not use either word when a plainer one fits better. Applicant, customer, or client is often clearer.
- Do not correct someone else’s requestor as an error. It is a valid variant.
Which One to Use (Decision Guide)
Work through these steps in order:
- Check for a rule. If a style guide, form, or software specifies a spelling, use it.
- Check for a quotation. If you are reproducing a label or someone’s words, copy the spelling exactly.
- Check the existing document. If it already uses one spelling, match it.
- Choose the default. With no other guidance, write the requester.
- Proofread. Search for the other spelling and fix any stray instances.
Requester vs Requestee
The Requestee names the opposite role. Wiktionary defines it as a person from whom something is requested. The ending -ee marks the one who receives the action, as in employer and employee.
Requestee pairs with either spelling of the asking role. In plain writing, recipient or the person being asked often reads more naturally.
| Word | Role | Example |
| Requester or requestor | The one who asks | The requester submitted the form on Monday. |
| Requestee | The one who is asked | The requestee has ten days to respond. |
Requester or Requestor Synonyms
Synonyms are not always interchangeable, so choose by context:
- Applicant: someone applying for a job, loan, or benefit.
- Petitioner: someone making a formal or legal appeal.
- Claimant: someone asserting a right or seeking compensation.
- Customer or client: someone requesting a service from a business.
- Submitter: a neutral term for forms and online portals.
- Originator: a term used in some workflow software.
- Asker: an informal, everyday option.
The rare form requestress, meaning a woman who makes a request, is better avoided in modern writing.
Real-World Practical Examples
Requester Examples
- Help desk: The requester received an automatic reply as soon as the ticket was logged.
- Public records: The agency sent its decision to the requester by email.
- Purchasing: The requester listed the budget code on the order form.
- Library: The requester collected the interlibrary loan on Friday.
- Email: Please confirm the requester’s address before we send the file.
Requestor Examples
- Form field: Requestor name: Sana Malik.
- Technical manual: Each requestor stores the data for one user session.
- House style: The requestor must return the signed copy within five days.
- Report: Every requestor receives a confirmation number.
These examples show usage, not a rule. Either word works in any of them as long as the document stays consistent.
Self-Assessment (Fill in the Blanks)
Choose the best option for each sentence.
- The person who sends a help-desk ticket is the ______ (requester / requestee).
- The person who receives a request and must respond is the ______ (requester / requestee).
- Your style guide uses requester. The form should ask the ______ to sign (requester / requestor).
- A software manual labels a field Requestor ID. In your guide to that software, you write ______ ID (Requester / Requestor).
- True or false: requestor is a spelling mistake.
- All ______ names will stay private (requesters / requesters’ / requester’s).
Answers
- Requester. This person asks.
- Requestee. This person is asked.
- Requester. Follow your style guide.
- Requestor. Match the product’s own label.
- False. Merriam-Webster lists it as a variant.
- Requesters’. This is the plural possessive.
Final Verdict
Treat requester as your default and requestor as a valid alternative that you use when a rule, label, or existing document calls for it. The meaning never changes, so the only real decision is which spelling suits your context. Whichever you pick, apply it everywhere in the piece.
Frequently Asked Questions
Which spelling is more correct, requester or requestor?
Neither is incorrect. Merriam-Webster lists both. Requester is the safer default because it is the form Dictionary.com uses as its main entry and the one Merriam-Webster gives first.
Do requester and requestor have different meanings?
No. Dictionaries give one meaning for both: a person or organization that makes a request. Product-specific uses, such as Pega’s definition of a requestor, are the exception and apply only within that product.
Can I use a requestor in formal or legal writing?
Yes. Use it when your style guide, contract, or source document does. Formality comes from tone and structure, not from the -or ending.
What is the plural of requester and requestor?
The plurals are requesters and requestors. The plural possessives are requesters’ and requestors’.
Does a requester have to be a person?
No. Dictionary.com defines a requester as a person or organization, and in computing the requester can be a program or process that asks another system for a service.
How do you pronounce requester and requestor?
Both are pronounced the same, with the stress on the second syllable: ri-KWES-ter.
Is requester a noun or a verb?
It is a noun. The related verb is request, as in: Please request a copy. The noun requester names the one who does the requesting.
Conclusion
Requester and requestor name the same role, so both are correct when used consistently. Choose a requester for general writing, follow any style guide or product label that says otherwise, and use requestee for the person who is being asked.