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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 ticket to your local IT support.
Rename the Team
From the Teams client or Web application, identify the team that you wish to rename. Click on the elipses (...) to the right of the team and select "Edit team".
Click on the "Team name" field and edit the Display Name. When done, click on "Update".