Have you ever written an email and wondered whether to say “who to contact” or “whom to contact”? This common grammar question can confuse English learners and native speakers alike. Both expressions are used when asking which person to reach, but they differ in grammatical form and tone.
The words “who” and “whom” refer to people. Traditionally, “who” is used as a subject pronoun, while “whom” is used as an object pronoun. However, modern American English is more flexible than traditional grammar rules suggest. In everyday conversations, people often use “who” even when formal grammar would favor “whom.”
Understanding this distinction can help you write better emails, communicate professionally, and avoid common grammar mistakes. You do not need to memorize complicated rules to make the right choice. A few simple examples can show you how each form works.
In this guide, you will learn when to use each expression, how to recognize the correct pronoun, and which form works best in different situations. You will also find practical examples, a comparison table, common mistakes, practice questions, and answers to frequently asked questions. Mine as Well or Might as Well | As Evidenced By or As Evident By | Involved or Envolved
Quick Answer: Who to Contact or Whom to Contact?
Both expressions are correct. “Who to contact” is more common in everyday American English, while “whom to contact” follows traditional object-pronoun grammar and may sound more formal.
Examples:
- Everyday English: I don’t know who to contact about my order.
- Formal English: Please advise me whom to contact regarding this matter.
For most everyday conversations and professional emails, the first option is a natural choice.
Understanding Who and Whom
The easiest way to understand these expressions is to learn the role each pronoun plays in a sentence.
What Does Who Mean?
“Who” is a pronoun used to ask about or identify a person. In traditional grammar, it functions as the subject of a verb.
The subject usually performs an action or is the person being described.
Examples:
- Who called you yesterday?
- Who manages this office?
- Who will answer the question?
- Who is responsible for the project?
In each sentence, the pronoun identifies the person performing an action or being described.
Consider this example:
“I don’t know who will contact me.”
Here, “who” is the subject of “will contact.” The speaker wants to know which person will make contact.
What Does Whom Mean?
“Whom” is traditionally used as the object of a verb or preposition.
An object receives an action or completes the meaning of a preposition.
Examples:
- Whom did you invite?
- Whom did the manager hire?
- To whom should I send the letter?
- With whom did you speak?
In these sentences, the pronoun refers to the person receiving an action or following a preposition.
For example:
“I don’t know whom to contact.”
Here, the pronoun is the object of the verb “contact.” It identifies the person the speaker should reach.
Who vs. Whom: Comparison Table
| Form | Type | Meaning | Example | Correct/Incorrect |
|---|---|---|---|---|
| Who | Subject pronoun | Identifies the person performing an action | Who called you? | Correct |
| Whom | Object pronoun | Identifies the person receiving an action | Whom did you call? | Correct in formal grammar |
| Who to contact | Common expression | Identifies a person to reach | I need to know who to contact. | Correct |
| Whom to contact | Formal expression | Identifies the person who should be reached | Please tell me whom to contact. | Correct |
| Who will contact me? | Direct question | Asks which person will make contact | Who will contact me? | Correct |
| To whom should I contact? | Incorrect construction | Adds an unnecessary preposition | To whom should I contact? | Incorrect in standard usage |
| To whom should I speak? | Formal question | Asks which person to speak with | To whom should I speak? | Correct |
Remember: The verb “contact” normally takes a direct object. You contact someone; you do not normally contact to someone.
Correct Uses in Everyday and Formal English
Both forms can identify a person you need to reach. The main difference involves traditional grammar and the tone of your writing.
1. When to Use Who to Contact
Use this expression when you want to identify the right person to call, email, message, or approach.
It is common in modern American English and works well in most everyday situations.
Example 1: I don’t know who to contact about the missing package.
Explanation:
- “I don’t know” expresses uncertainty.
- “Who” identifies the person.
- “To contact” describes the action the speaker wants to take.
The sentence means that the speaker does not know which person can help.
Example 2: Can you tell me who to contact for technical support?
This is a polite and natural way to ask for assistance.
Example 3: We need to find out who to contact before submitting the application.
The speaker wants to identify the appropriate person before taking the next step.
Example 4: She asked her supervisor who to contact about the schedule.
This sentence contains an indirect question. It does not need a question mark because the complete sentence is a statement.
For ordinary conversations, messages, and workplace emails, this wording is usually a safe choice.
2. When to Use Whom to Contact
Use the formal alternative when you want to follow traditional grammar or maintain a more formal tone.
Examples:
Example 1: Please let me know whom to contact regarding the contract.
This sentence sounds formal and professional.
Example 2: The employee was uncertain whom to contact about the policy.
The pronoun is the object of “contact,” making “whom” appropriate under traditional grammar.
Example 3: Could you advise us whom to contact for additional information?
This is a polite request suitable for formal correspondence.
Example 4: The instructions explain whom to contact in an emergency.
The expression identifies the person who should receive the communication.
Although this form is correct, modern American English often favors “who” in the same position. You do not need to use “whom” simply to make every sentence sound formal.
3. A Simple Test for Choosing the Right Pronoun
The traditional “he or him” test can help you understand the difference.
- If “he” or “she” fits, “who” is generally appropriate.
- If “him” or “her” fits, traditional grammar generally favors “whom.”
Consider this question:
Who will contact the manager?
The answer is “He will contact the manager.” Because “he” fits, “who” is correct.
Now consider:
Whom should I contact?
The answer is “I should contact him.” Because “him” fits, traditional formal grammar favors “whom.”
However, everyday American English often uses “who” in object positions. The test explains traditional grammar, but it does not mean that every informal use of “who” is wrong.
Case Study: Choosing the Right Form at Work
Imagine that Daniel works in an office. He has a question about his salary but does not know which department handles payment problems.
He decides to email his manager.
Example 1: A Natural Professional Email
Subject: Question About My Salary
Hello,
I have a question about my recent salary payment. Could you please let me know who to contact about this issue?
Thank you for your help.
Best regards,
Daniel
This email is clear and polite. The wording is natural for an ordinary workplace message.
Example 2: A More Formal Email
Subject: Assistance With a Salary Inquiry
Dear Manager,
I would appreciate your guidance regarding a question about my recent salary payment. Could you please advise me whom to contact regarding this matter?
Thank you for your time and assistance.
Sincerely,
Daniel
This version uses a more formal tone. The wording may suit an official request or a workplace that prefers traditional formal English.
What Can We Learn From This Example?
Both emails communicate the same request. Neither creates confusion about what Daniel needs.
The first version is more conversational, while the second sounds more formal.
The lesson is simple: choose language that fits the situation. Correct grammar matters, but clear communication should always be the goal.
Grammar Rules for Choosing Between Who and Whom
The distinction comes from the grammatical role of each pronoun.
Rule 1: Use Who as a Subject
Use “who” when the pronoun is the subject of a verb.
Examples:
- Who sent the email?
- Who works in the finance department?
- Who will contact the customer?
- Who is responsible for the report?
In each sentence, the pronoun identifies the person performing an action or being described.
Rule 2: Use Whom as an Object in Formal Grammar
Traditional grammar uses “whom” as the object of a verb or preposition.
Examples:
- Whom did you invite?
- Whom did the company hire?
- To whom should I send the report?
- With whom did you discuss the issue?
Compare these questions:
- Who contacted the manager?
- Whom did the manager contact?
In the first question, the person performs the action. In the second, the person receives the action.
Rule 3: Understand the Infinitive Construction
The phrase “who to contact” contains a question word followed by an infinitive.
Consider this sentence:
“I don’t know who to contact.”
It has a meaning similar to:
“I don’t know who I should contact.”
The pronoun identifies the person the speaker should reach.
Under traditional formal grammar, “whom to contact” is appropriate because the pronoun is the object of the verb. However, “who to contact” is widely accepted in contemporary American English.
Both forms can work, depending on the desired style.
Rule 4: Do Not Add an Unnecessary Preposition
The verb “contact” normally takes a direct object.
Correct examples:
- Who should I contact?
- Whom should I contact?
- I don’t know who to contact.
- I don’t know whom to contact.
Incorrect in standard usage:
- Who should I contact to?
- To whom should I contact?
The last example uses the wrong structure.
However, these sentences are correct:
- To whom should I speak?
- To whom should I send this letter?
These examples use verbs that can take the preposition “to.”
What Do Standard Grammar References Say?
Standard American English references, including Merriam-Webster, discuss the traditional distinction between “who” and “whom” and recognize that usage varies.
Traditional grammar distinguishes subject pronouns from object pronouns. Modern English often uses “who” in places where older formal rules favor “whom.”
That is why “Who should I contact?” is natural and widely used, even though “Whom should I contact?” follows the traditional object-pronoun rule.
The important lesson is to understand the distinction without assuming that every everyday use of “who” is incorrect.
Common Mistakes With Who and Whom
Writers often confuse these pronouns because they have similar meanings. The following mistakes are especially common.
Mistake 1: Assuming Who Is Always Incorrect as an Object
Some people believe that “who” must never appear in an object position.
That rule is too strict for modern American English.
For example:
“I don’t know who to contact.”
This is widely accepted and sounds natural in ordinary communication.
The formal alternative is:
“I don’t know whom to contact.”
Both sentences communicate the same basic meaning.
Mistake 2: Using Whom Everywhere
Using “whom” does not automatically make a sentence correct.
Consider this example:
“Whom will contact me tomorrow?”
This sentence is incorrect because the pronoun is the subject of “will contact.”
The correct sentence is:
“Who will contact me tomorrow?”
Always consider the pronoun’s role rather than choosing the most formal-looking word.
Mistake 3: Writing To Whom Should I Contact?
This construction is incorrect in standard English when you want to ask which person you should contact.
Correct forms include:
- Who should I contact?
- Whom should I contact?
- To whom should I speak?
The verb “contact” takes a direct object, while “speak” can take the preposition “to.”
Mistake 4: Choosing Only by Sound
A familiar expression may not follow traditional grammar, but that does not mean it is unsuitable in every situation.
For example, “Who did you invite?” is common in conversation. Traditional formal grammar favors “Whom did you invite?”
Learn the distinction and then consider the tone and context.
Why Do These Mistakes Happen?
Several everyday habits contribute to grammatical confusion.
Fast typing: People often write quickly without reviewing their sentences.
Autocorrect: Writing tools may suggest a word without considering the complete grammatical structure.
Lack of knowledge: Some people learn English through conversation without studying subject and object pronouns.
Overthinking: Writers may believe that “whom” always sounds more professional and use it unnecessarily.
To avoid these mistakes, learn the basic rule, review your sentence, and choose the form that suits your audience.
Table of Similar Grammar Confusions
| Confusing Forms | Main Difference | Example |
|---|---|---|
| Who / Whom | Subject vs. traditional object form | Who called? Whom did you call? |
| It’s / Its | “It’s” means “it is” or “it has”; “its” shows possession | It’s cold. The cat moved its tail. |
| Your / You’re | Possession vs. “you are” | Your book is here. You’re welcome. |
| Their / There | Possession vs. place or introductory expression | Their car is outside. The car is there. |
| Then / Than | Time or sequence vs. comparison | We ate, then left. She is taller than I am. |
| Affect / Effect | Usually a verb vs. usually a noun | The change may affect us. The effect was clear. |
| To / Too | Direction or infinitive vs. also or excessively | I want to go, too. |
| Who’s / Whose | “Who is” or “who has” vs. possession | Who’s here? Whose bag is this? |
Understanding these distinctions can help you write more accurately in emails, reports, assignments, and online messages.
Using the Expressions in Different Contexts
Your choice should reflect the audience, purpose, and tone of your message.
1. Everyday Conversation
In casual conversations, “who to contact” is usually the more natural option.
Examples:
- Do you know who to contact?
- I need to find out who to contact about my order.
- Can you tell me who handles these requests?
- I’m not sure who to contact about the broken printer.
These expressions are direct and easy to understand.
You can also ask, “Who should I contact?” This question is common in everyday American English.
2. Professional Writing
In professional communication, both forms can be appropriate.
Natural professional style:
“Please let me know who to contact about the invoice.”
More formal style:
“Please advise me whom to contact regarding the invoice.”
Both sentences are polite. The first is direct, while the second follows a more formal style.
3. Creative Writing
Writers may choose either expression depending on the character and situation.
A character speaking casually might say:
“I don’t know who to contact about this.”
A character in a highly formal setting might say:
“Please tell me whom to contact.”
The choice can help create realistic dialogue and reflect a character’s communication style.
4. Social Media and Texting
Short expressions work well in online communication.
Examples:
- Anyone know who to contact about this?
- Who should I contact for support?
- Does anyone know who handles these requests?
- Please tell me who to contact if this happens again.
Using “whom” in a casual message is not necessarily incorrect, but it may sound more formal than necessary.
5. Customer Service Requests
When asking a company for help, clarity is especially important.
Examples:
- Who should I contact about a refund?
- Can you tell me who handles account support?
- I would like to know who to contact about my delivery.
For a more formal complaint, you might write:
“Please advise me whom to contact regarding this unresolved issue.”
Choose the form that makes your request clear and suits the level of formality you need.
Why Correct Pronoun Usage Matters
Understanding the distinction can improve your writing, especially when communicating in professional or academic settings.
Clarity in Communication
Clear sentences help readers understand your request quickly.
For example:
“Please tell me who to contact about the problem.”
The sentence communicates the request directly without unnecessary complexity.
Professionalism
Professional writing should be polite, clear, and appropriate for its audience.
Using “whom” may suit a formal letter, but professionalism does not require complicated language. A simple sentence can be more effective than an overly formal one.
Writing Accuracy
Learning about subject and object pronouns helps you understand sentence structure.
You can apply the same knowledge to other questions involving pronouns and prepositions.
Digital Communication
Emails, workplace chats, online forms, and social media all benefit from clear wording.
The everyday form is useful in many digital settings because it is direct and familiar. Formal documents may use the traditional alternative when the style calls for it.
A useful reminder: Clear writing makes communication easier.
The purpose of grammar is not to make every sentence complicated. It is to help people express their ideas accurately.
Special Cases and Less Common Uses
Some sentence structures require extra attention.
1. When Whom Sounds Too Formal
In casual American English, “whom” can sound stiff.
For example:
“I don’t know whom to contact.”
This is grammatically correct under traditional rules, but many speakers prefer:
“I don’t know who to contact.”
Both sentences express the same idea.
2. When Whom Follows a Preposition
Traditional formal English often uses “whom” after a preposition.
Examples:
- To whom should I send the report?
- With whom did you discuss the matter?
- For whom is this package intended?
Everyday English often uses “who” and places the preposition at the end.
Examples:
- Who should I send the report to?
- Who did you discuss the matter with?
- Who is this package for?
These forms are common in modern American English.
Remember that “contact” normally takes a direct object. Therefore, write “Whom should I contact?” rather than “To whom should I contact?”
3. When the Expression Appears in an Indirect Question
An indirect question is a question included within a larger sentence.
Examples:
- I wonder who to contact.
- She asked who to contact.
- Please explain who we should contact.
In modern English, “who” is common in these structures. “Whom” is also possible when following the traditional object-pronoun distinction.
4. Official Names and Fixed Expressions
Some organizations, publications, or brands use specific wording in their official names and materials.
When reproducing an official name, use its established spelling and wording rather than changing it to fit a general grammar preference.
There is no special brand-name rule that makes one expression universally correct. The normal grammatical principles still apply when writing your own sentences.
Quick Recap Checklist
Use this checklist whenever you are unsure which pronoun to choose.
| Question | If Yes → Use |
|---|---|
| Are you writing a casual message? | Who to contact |
| Do you want natural, modern American English? | Who to contact |
| Are you following a formal style that favors traditional object pronouns? | Whom to contact |
| Is the pronoun the subject of the verb? | Who |
| Is the pronoun the object of a verb or preposition in formal grammar? | Whom |
| Are you asking a direct question in everyday English? | Who should I contact? |
| Are you writing a formal question and want the traditional object form? | Whom should I contact? |
Practice Examples
Test your understanding with these questions.
Example 1:
I don’t know ______ to contact about the missing package.
Answer: Who or whom.
Both forms are acceptable. “Who” is more common in everyday American English, while “whom” may suit formal writing.
Example 2:
______ should I contact about the payment problem?
Answer: Who or whom.
“Who should I contact?” is natural and common. “Whom should I contact?” follows traditional formal grammar.
Example 3:
______ will contact you about the interview?
Answer: Who.
The pronoun performs the action of contacting, so “who” is the appropriate choice.
An Easy Way to Remember
Keep these three points in mind:
- Who: Traditionally used as a subject.
- Whom: Traditionally used as an object.
- Who to contact: Common in everyday American English.
You do not need to force formal grammar into every conversation. Focus on clear communication and the needs of your audience.
FAQs
1. Is Who to Contact or Whom to Contact Correct?
Both expressions are correct. The everyday form is common in modern American English, while the formal alternative follows the traditional object-pronoun rule.
For most casual conversations and ordinary workplace messages, the first form is a natural choice.
2. Should I Write Who Should I Contact or Whom Should I Contact?
Both forms are used in English. “Who should I contact?” is common in everyday speech and writing. “Whom should I contact?” follows traditional grammar because the pronoun is the object of “contact.”
Choose the form that best fits your audience and tone.
3. Why Is Whom to Contact Grammatically Correct?
“Whom” is traditionally used as an object pronoun. In this expression, it functions as the object of the verb “contact.”
The expression is grammatically correct, especially in formal writing.
4. Is Who to Contact Acceptable in Professional Emails?
Yes. The expression is acceptable in professional emails and is often the more natural choice.
For example: “Could you please let me know who to contact about this issue?”
You may choose the formal alternative when the tone of your message calls for it.
5. Is To Whom Should I Contact Correct?
No. In standard English, the correct forms are “Who should I contact?” and “Whom should I contact?”
The verb “contact” normally takes a direct object, so it does not need “to” before the person being contacted.
However, “To whom should I speak?” is correct because “speak” can take the preposition “to.”
6. How Can I Remember When to Use Who or Whom?
Try the traditional “he or him” test.
If “he” or “she” fits, “who” is generally appropriate. If “him” or “her” fits, traditional grammar generally favors “whom.”
For example, “Who will contact me?” matches “He will contact me,” so “who” is correct.
Remember that modern American English often uses “who” in object positions where traditional grammar would favor “whom.”
Conclusion
Choosing the right expression becomes easier when you understand the difference between subject and object pronouns. Both forms are correct, but they may suit different situations.
Use “who to contact” in everyday conversations, text messages, and most professional emails. It sounds natural, direct, and familiar to modern American English speakers. Use “whom to contact” when you want a more formal tone or when traditional grammar is important to your writing.
Remember that “who” traditionally functions as a subject, while “whom” functions as an object. The “he or him” test can help you identify the difference, although modern usage is more flexible than traditional rules suggest.
Most importantly, do not make your writing more complicated than necessary. Good grammar should help you communicate confidently and clearly.
Choose words that fit the sentence, match your audience, and make your meaning easy to understand.
Hi, I’m Alexander Hayes, a grammar and writing specialist at Gramcora. I enjoy creating informative resources that help students, professionals, and English learners write with confidence and accuracy.
