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Overview
Owners of a Microsoft Team have the ability to change the display name of their Team. These are the steps to update a Team name.
Warning
Changing the "Display Name" for a Team does not change the underlying Microsoft 365 Group, SharePoint Online site, or Exchange Online shared mailbox names and email addresses. To request a full team rename, please submit a service request.
Rename the Team
The web application, https://teams.microsoft.com, is recommended for this change. Identify the team that you wish to rename. Click on the ellipsis (...) to the right of the team and select "Manage team".

Click on the "Settings" tab and the "Edit" button.

Change the "Team name" and optional Description and click on "Done" to save the new name.
