What is a Facebook username?
You can personalize your Facebook URL (web address) by selecting a unique username. It will appear in the location bar of your browser after "http://www.facebook.com/" when you view your profile.

Where can I claim a username?
You will be able to select a username at http://www.facebook.com/username .

You can select a username that Facebook suggests or create your own. Select "Check availability" to check for available usernames. If the desired username is available, click "Confirm" in order to confirm your choice.

How many usernames does each person get?
Users can only have one username for their personal profile. Similarly, Facebook Page administrators can only have one username for each Page.

How do I change my username?
You can change your username from the Settings tab of the Account Settings page. Scroll down to "Username" and click "change." Then follow the on-screen directions. Keep in mind you will only be able to change your username once.

Will username URLs be available in multiple languages?
Not at this time. Usernames can only contain alphanumeric characters (A-Z, 0-9) or a period ("."). We're looking at how we may potentially support non-romanized characters in the future.

Can I transfer my username to another account?
Once you have claimed a username by clicking the "Confirm" button after checking for a username's availability, it is not possible to transfer your username to a different account on Facebook. Additionally, when an account is removed from the site, its username will not be made available. Facebook does this for security reasons.

You should make sure it is something you like and that it’s appropriate for friends, family, co-workers, and anyone else who might use it to find you.

My username was not available.
You may not be able to claim a username for several reasons. Usernames can only contain alphanumeric characters (A-Z, 0-9) or a period ("."), for example -- john.smith55. It is important to note that a period (".") does not count as a part of a username; therefore, names like johnsmith55, john.smith55, john.smith.55, etc. all constitute the same username. Usernames also must be at least 5 characters long. Usernames are not case sensitive. Facebook also prevents certain words from being included in usernames. It is not possible to copy a username that someone else has already claimed.

If Facebook has indicated that your username cannot be claimed, you will need to select a different one. You will see a green checkmark indicating that a potential username is available before you actually claim it.

Does a period (".") make a username unique?
No. A period (".") does not count as a part of a username; therefore, names like johnsmith55, john.smith55, john.smith.55, etc. all constitute the same username.

Do I need to adjust my privacy settings to account for my new username?
No. Your username will adhere to the privacy settings you created for your profile.

Can I claim a username for a group or event?
Usernames are available only for Facebook profiles and Pages. It is not possible to claim a username for a group or event created with these Facebook applications.