Hi @Nella
Welcome to the Microsoft Q&A forum.
Thank you so much for taking the time to sharing your situation.
I understand how the situation can feel when a guest in Microsoft Teams keeps showing an unexpected display name, even after being removed and re‑added. This behavior can be surprising if you weren’t aware Teams saves that initial name in the background.
Here are steps that you can update it by editing that guest profile directly.
Option 1: Update the guest’s name in Microsoft Entra admin center
Note: You must have Entra ID admin permissions
- Go to https://entra.microsoft.com/
- In the left menu, select Users > All users

- Find the guest using their email address.
- Click on the guest you want to change their Display Name > Choose Edit properties.
- Edit the Display name field.
- Save your changes.
Changes usually sync to Teams within a few minutes but sometimes can take up to an hour.
Option 2: Remove the guest from your directory entirely
If you want to force a clean re‑invite:
Note: Removing them from the directory removes all guest access to your tenant.
- Go to https://entra.microsoft.com/ > Navigate to Users > Choose All users.
- Click on the guest you want to delete and re-add Display name
- Click Delete.

- Now re‑invite them to Teams, you’ll be prompted for a name again.
As moderators, my role is to provide general guidance and assist with common troubleshooting steps. While I do not have access to internal systems or administrative tools required to resolve account-specific or backend-related issues but I’ll continue doing our best to support you within the scope of our responsibilities.
I hope this information is useful. As other users will also be searching for guidance in this community, clicking “Accept Answer” would be a wonderful way to amplify your impact. Your action not only helps others with similar questions find the right solution faster, it also highlights your role in shaping a more helpful and informed community.
Thank you again for your time and for raising this important usability concern. If you have any further questions or need additional assistance, please don’t hesitate to reach out.
I look forward to your thoughts on this.
Note: Please follow the steps in our documentation to enable email notifications if you want to receive notifications related to this thread.