How to Message Someone on Github

Updated on:

May 12, 2026

By:

Use this interactive demo to learn how to contact a collaborator via GitHub pull request comments.

Quick summary

On GitHub, you can message someone by navigating to a shared repository, opening a pull request, and mentioning their username in the comment section. This method lets collaborators communicate directly within the context of the code they are reviewing.

Steps

Navigate to your desired repository from the GitHub dashboard.
Go to the Pull requests tab within the repository.
Select the pull request you want to comment on.
In the pull request thread, tag the person you want to message by typing their username — this works when you are both collaborating in the same repository.
Mention the user by typing their @username in the comment box.
Once your message is ready, click the Comment button to post it.
Your collaborator will be notified and can respond directly in the comment section of the pull request.

📌 Why this matters

GitHub does not have a traditional direct messaging inbox, so knowing how to message someone through pull request comments and @mentions is an essential skill for any developer or team collaborator. This workflow keeps communication tied directly to the relevant code changes, improving context and reducing back-and-forth across separate tools. For teams working in shared repositories, using @mentions in pull requests ensures the right person is notified instantly and the conversation remains part of the project's permanent record. Mastering this GitHub collaboration feature helps distributed engineering teams review code faster and resolve issues more efficiently.

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