To change your Facebook Page name, follow these steps:
Go to your Facebook Page and click on the "Settings" button at the top right corner of the screen.
Click on "Page Info" on the left-hand side of the screen.
Click on the "Edit" button next to your Page name.
Enter a new name for your Page.
Click on the "Continue" button.
Review the Page name change terms and make sure you understand them.
Click on the "Request Change" button.
Facebook will review your Page name change request, which may take up to a few days. They may also contact you to verify your request, so make sure to check your notifications or email for any updates.
Keep in mind that Facebook has certain rules and guidelines for Page names. You can only change your Page name once every 7 days, and your new name cannot violate any of Facebook's terms or policies.
If your Page has more than 200 likes, you may also need to have the approval of a certain percentage of your Page's fans before the name change can take effect.