Change my Apple ID

Do you want to change the name set for your Apple ID, or do you want to change the part before the @ in the email you use as your Apple ID?

You cannot modify the part before the @, but you can add an alias to your account and give that out as your email address now. Click here ➡️ Add and manage email aliases for iCloud Mail on iCloud.com - Apple Support

To change the name enteres for your Apple ID, log in to https://appleid.Apple.com and change it in the personal. Details section.

An Apple ID is either an email address or more rarely, a mobile telephone number. You cannot have it as your last name exclusively.

If you mean your forum name, you can contact the hosts by email and request a change.

From: Apple Support Communities Terms of Use. - Apple Support Communities Use Agreement - Apple Community

For questions or problems regarding your Apple Support Communities account, please post a question in the Using Apple Support Communities site ( https://discussions.apple.com/community/using_apple_support_communities ), or e-mail communityaccounts@apple.com