How to change your display name in Google Plus
1. Visit http://www.plus.google.com and log in if you are not already.
2. Click your name in the upper right hand corner of the page.
NOTE:Make sure you are logged in. If not, you should see “Sign In” instead of your name.
3. Click the “Profile” option.
4. Click the “Edit Profile” button on the right hand side of the screen.
5. Click your name.
6. Make the changes to your first or last name and click the “Save” button.
7. The name should change. This task should now be complete. If not, review and repeat the steps as needed. Submit any questions using the section at the bottom of this page.