Why and when to rename your MacBook

Your MacBook has a computer name — the name it uses on networks and in file sharing. By default, Apple sets it to something like "James's MacBook Pro" or a string of numbers. You might want to change it for clarity on a shared network, to match your workplace naming scheme, to separate work and personal use on the same machine, or straightforward because the default name is awkward.

The computer name is different from your user account name (the login you type at startup). Changing the computer name does not affect your password, files, or account settings. It only changes how the machine identifies itself to other computers and devices on your network.

You can change your MacBook's name in about two minutes through System Settings. The process is the same on any recent macOS version, though the exact menu location shifted slightly in macOS Ventura and later.

Key Takeaways

  • Your MacBook's computer name is what appears on networks and in file sharing, separate from your login account name.
  • You change the computer name through System Settings under General, then About, then Edit — no restart required.
  • The new name takes effect when ready for network sharing and AirDrop, though some services may take a few minutes to update.
  • Computer names can include letters, numbers, and hyphens, but not spaces or special characters like @ or &.
  • If you share your MacBook with other users, any account holder can change the computer name without a password.

How to change the name on macOS Ventura and later

Open System Settings (the gear icon in your Dock or Applications folder). Click General in the left sidebar. At the top of the window, you will see "About" — click that section. You will see your current computer name displayed as "Computer Name" near the top of the panel.

Click the Edit button next to the computer name. A text field will appear with your current name highlighted. Delete the old name and type the new one. Click Done when you are finished. The change takes effect when ready — you do not need to restart.

If the Edit button does not appear, you may be on an older macOS version. Scroll down to check your macOS version number, or follow the instructions in the next section instead.

How to change the name on macOS Monterey and earlier

Open System Preferences (the gear icon in your Dock or Applications folder). Click Sharing in the sidebar. At the top of the window, you will see a field labeled "Computer Name" with your current name in it. Click directly in that field to select it.

Delete the old name and type the new one. Press Enter or click outside the field to save. The change takes effect when ready. You do not need to restart your Mac.

Rules for naming your MacBook

Computer names can include letters (uppercase and lowercase), numbers, and hyphens. They cannot include spaces, periods, or special characters like @, &, !, or #. If you try to use a space or forbidden character, macOS will reject the name and ask you to try again.

Names are not case-sensitive on your Mac itself, but they may appear differently on other devices depending on how those devices display them. A name like "James-MacBook" and "james-macbook" refer to the same computer, though you might see one or the other depending on where you look.

There is no length limit enforced by macOS, but very long names (over 60 characters) may be truncated when displayed on some devices or networks. Keep names reasonably short and descriptive — "Work-MacBook" or "Studio-iMac" are clearer than "MyComputerThatIUseForEverything".

When the new name appears on your network

The computer name change is when ready on your Mac itself. When you look at System Settings again, you will see the new name right away. However, other devices on your network may take a few minutes to recognize the change.

If you are sharing files via AirDrop, the new name will show to nearby devices within a minute or two. If you are using file sharing (SMB or AFP), other computers may continue to see the old name in their network browser for up to 10 minutes while the network directory updates. Restarting the other computer speeds this up, but is not necessary.

If your MacBook is connected to a workplace network with a directory service (like Active Directory), the computer name change may not propagate to the directory until your next login or restart. Check with your IT department if you are on a managed network.

Changing the name when multiple people use your Mac

If your MacBook has multiple user accounts, any account holder can change the computer name without entering a password. The computer name belongs to the machine itself, not to any individual account, so the change affects all users when ready.

This is different from changing your own account name or password, which requires your account credentials. If you want to prevent other users from changing the computer name, you would need to use parental controls or managed accounts through your organization's directory service — but this is rarely necessary for personal or small-team Macs.

Reverting to the default name

If you want to go back to Apple's default naming scheme, you can change the name to anything you like — there is no "reset to default" button. The original default name (like "James's MacBook Pro") is not stored anywhere you can retrieve it. straightforward type a new name following the naming rules above.

If you are selling or giving away your MacBook, you might want to change the name to something generic like "MacBook" or remove your name from it entirely. This is a small privacy step, though the more important action is erasing your data through System Settings > General > Transfer or Reset before handing the machine to someone else.

Frequently Asked Questions

Does changing the computer name affect my passwords or files?

No. The computer name is only used for network identification. Your login password, user account, files, and all settings remain unchanged. You can rename your Mac as many times as you want without affecting anything on it.

Can I use spaces or special characters in the computer name?

No. macOS only allows letters, numbers, and hyphens. If you try to use a space, period, or symbol like @ or &, the system will reject the name and ask you to edit it. Use hyphens instead of spaces if you need to separate words.

Will the new name show up when ready on my network?

It shows when ready on your Mac. Other devices may take a few minutes to see the new name in their network browser or AirDrop list. If a device continues to show the old name after 10 minutes, restarting that device usually helps.

What if I forgot where to find the computer name setting?

On macOS Ventura or later, go to System Settings > General > About, then click Edit next to the computer name. On older versions, go to System Preferences > Sharing and look for the Computer Name field at the top. Both take less than a minute to find.

Can I change my computer name if I am on a work network?

You can change it in System Settings, but if your Mac is managed by your workplace (enrolled in Mobile Device Management or connected to Active Directory), the change may not stick or may revert after restart. Check with your IT department before renaming a work computer.