If Gmail user wants to change the username only with few simple step user can change Gmail username.
The following steps are there to change Gmail username:
1. In the first step, Open your Gmail account.
2. Then go to the “my account” setting. And click “my account” check box.
3.Then a page is open that show user personal info & privacy. You just go to the “your personal info: and click on that.
4. In this step, your personal info box is open.Now click on “name”.
5. In this step, a Dialog box is open now user can easily change the first name and last name.
6. Now, just click done to keep the change permanently.