Can I change the email on my iCloud Account?

To which email are you referring?

If you mean your Apple ID used to sign into your account:

The support article Change your Apple Account primary email address - Apple Support outlines various methods for changing the email address (Apple ID) you use for your Apple Account while retaining everything in your account.

If you have an iPhone or iPad:

1. Go to Settings, then tap your name.

2. Tap Sign In & Security.

3. Next to Email & Phone Numbers, tap Edit.

4. Tap the Remove button next to the email address, then tap Delete.

5. Tap Choose Another Email Address and enter your device passcode if asked.

6. Enter the new email address, then tap Continue.

7. Enter the verification code that was sent to your new email address. Read this support article to learn what to do if you didn’t get the email —> If you didn’t receive your verification or reset email - Apple Support

8. If you encounter issues with certain services after doing this, this outdated support article may still have useful suggestions --> What to do after you change your Apple ID or password - Apple Support

Refer to the support article Change your Apple Account primary email address - Apple Support :

- If you don’t have an iPhone or iPad, the support article says to, “go to https://appleid.apple.com and sign in. Then follow the onscreen instructions to change the email address associated with your Apple ID.”

- For general information, and other issues such as changes or addresses not being accepted.

- Note a recent change to the article where you can now change the email address without having to have access to your old email account.

If you mean the identifier you chose when you set up iCloud mail, no you cannot. Add and manage email aliases for iCloud Mail on iCloud.com - Apple Support - "Note: You can’t delete or turn off a primary iCloud Mail address. You can’t use an alias to create a separate Apple ID, and an email alias can’t be converted to a primary iCloud Mail address."

If you mean an alias you have set up, read:

Add and manage email aliases for iCloud Mail on iCloud.com - Apple Support