Facebook is a social network that allows you to connect with and communicate with family and friends all over the world. When you sign up for a Facebook account, you have to configure a profile name that allows others to recognize who you are. You can use your own name, an alias or nickname. Facebook also enables you to change your profile name at any time.
Go to Facebook.com (or click the Resources link) and log on to your account using your email address and password.
Click "Account" and click "Account Settings." Click the "Change" link in the "Name Section." Type the new name that you want to use and click "Change Name."
Click the "Change" link in the "Username" section if you want to change your Facebook user name. Select the user name that you want to use and click "Check Availability" to confirm that it is available. The user name is the name that appears after the Facebook URL address. For example, a "Smiley" user name would have "http://facebook.com/smiley" as a URL address.