The quickest way to change your lock screen name

The name on your Mac lock screen comes from your user account name, which you can change in System Settings. Open System Settings, click on your profile picture in the top left, then select "Edit" next to your name. Type the new name you want to appear and click "Done". The change takes effect when ready — the next time you lock your screen or restart, the new name will show.

This is the same name that appears in the top-right corner of your menu bar and in Finder when you browse your home folder. Changing it here changes it everywhere on your Mac at once.

Key Takeaways

  • Your lock screen name comes from your user account name in System Settings, which you can edit directly from your profile picture.
  • The change appears when ready on your lock screen the next time you lock your Mac or restart.
  • Changing your account name also changes the name that appears in your menu bar and Finder.
  • If you want to keep your account name the same but change only the display name, you can set a separate "Full Name" in your Apple ID settings.

Where to find the account name setting

Open System Settings by clicking the Apple menu in the top-left corner and selecting "System Settings". In the sidebar on the left, you should see your profile picture near the top. Click on it.

You will see your current account name displayed. Next to it is an "Edit" button. Click that button to open the editing field. Your current name will be highlighted and ready to change.

What name actually shows on the lock screen

Your Mac displays your account name on the lock screen, not your full name or Apple ID. The account name is the short identifier your Mac uses internally — it is usually lowercase with no spaces, like "sarah.chen" or "jsmith". If you have never changed it, it was set when you first created your account.

If you want a different name to appear on your lock screen than what you use for your account, you have a second option: set a "Full Name" in your Apple ID settings. This name appears in some places on your Mac but not on the lock screen itself. The lock screen always shows your account name.

Changing your account name without losing access to files

When you change your account name in System Settings, your home folder and all your files stay where they are. Your Mac updates the reference automatically, so you do not lose access to anything. You will not need to re-enter passwords or re-set up applications.

However, if you have a lot of files or applications that reference your old account name in their file paths, you may see a brief moment where those paths update. This is normal and happens in the background. Restart your Mac after making the change to may support everything syncs properly.

If you cannot edit your account name

If the "Edit" button is grayed out or does not appear, you may not have permission to change your account name. This happens if you are logged in as a Standard user rather than an Administrator. Ask whoever set up your Mac to log in as an Administrator and make the change for you.

If you are the only user on your Mac and you set it up yourself, you are already an Administrator. Try restarting your Mac and opening System Settings again. If the button is still grayed out, your Mac may be managed by an organization (like a school or workplace), and you will need to contact your IT department to change your account name.

Changing your name on the login screen instead

If you want a different name to appear on the login screen when multiple people use your Mac, you can set a separate display name for each account. Go to System Settings, click on "General" in the sidebar, then select "Users & Groups" (or "Login Items" depending on your macOS version). Select your account and click "Edit". The name you set here is what appears on the login screen.

This is different from your account name. You can have a short account name like "sarah" but a display name like "Sarah Chen" that shows on the login screen. The lock screen, however, still uses your account name.

Frequently Asked Questions

Will changing my account name affect my Apple ID or iCloud?

No. Your Apple ID and iCloud account are separate from your Mac account name. Changing your Mac account name does not change your Apple ID, and you will not be logged out of iCloud or any Apple services. Your iCloud data stays synced to your Mac.

Can I change my account name to include spaces or special characters?

macOS allows spaces and most special characters in account names, but it is not recommended. Account names with spaces can cause problems with some applications and command-line tools. Stick to letters, numbers, periods, and hyphens if possible.

What happens to my old account name after I change it?

Your old account name is replaced. Your home folder path updates automatically, and your Mac treats the new name as your account name going forward. You cannot revert to the old name without changing it back manually.

Does changing my account name log me out of apps?

Most applications will not log you out, but some may need to be restarted to recognize the new account name. Restart your Mac after making the change to be safe. If an app continues to show your old account name, quit it and open it again.