Who vs. Whom
Use 'who' for subjects, 'whom' for objects, or simplify the sentence.
What & why
For many listeners, who and whom act as a register signal: getting it right reads as careful and educated, while a misuse can briefly distract. The riskier error is hypercorrection, reaching for whom where who belongs (Whom is calling?), which often lands as trying too hard and can undercut authority more than the casual who would. Using the correct form, or simplifying the sentence to sidestep the choice, keeps attention on your message rather than on a momentary grammatical snag.
Before & after
“Whom is calling?”
“Who is calling?”
When you’ll use it
Employee introductions: "This is the manager who leads the team" (subject) vs "the manager whom we hired" (object)
Meeting references: "Who will attend?" (subject) vs "Whom should we invite?" (object)
Performance discussions: "The employee who excelled" (subject) vs "the employee whom we promoted" (object)
Client communications: "Who is responsible?" (subject) vs "To whom should I send this?" (object)
Pro tip
If you can answer with 'him,' use 'whom.' If 'he,' use 'who.'
Questions & answers
When should I use 'who' vs. 'whom' in business communication?
Is 'whom' still important in professional writing?
How can I remember when to use 'whom'?
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