Complaint About Bullying Colleague

When and how to use this letter

Write this complaint when the behavior is a pattern, not a one-off disagreement. Before you send it, list each incident with dates and what was said or done, because managers act on documented patterns far more readily than on general claims of bullying. Note any witnesses and save relevant messages or emails.

Send the letter to your direct manager by email. If your manager is part of the problem or dismisses the complaint, go to HR or use the company's grievance procedure instead. Keep the tone factual: describe behaviors and their impact on your work rather than attacking the colleague's character.

After filing, expect your manager or HR to speak with both sides. Stick to your documented facts and avoid being drawn into emotional exchanges. If mediation is offered, it can work for misunderstandings, but genuine bullying usually needs a formal process with clear consequences, so do not feel pressured to accept an informal chat as the whole solution.

One non-obvious tip: bullying often escalates right after a complaint is filed, so watch for retaliation and log it immediately if it happens. Also, check whether your country treats workplace bullying as an occupational health issue; in several jurisdictions you can file a stress or psychological-injury claim if the bullying has affected your health, which gives the complaint real teeth.

Frequently asked questions

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