This article is about the steps required for changing first name and last name in Google Profile.
Step 1: Login to you Gmail account (or any Google account) and click the Profile option available at the top right hand corner.
Step 2: Click the Account link in the Profile pop up. This should launch the following Profile Screen.
Step 3: Click the Edit Profile link under Personal Info section. This should display the following About Google+ page.
Step 4: Now click the name on your Google+ page to launch the Edit your name screen.
Enter the required details for the name and click Save button. You might receive a warning message that changing the name would reflect in all your Google Services. Click “Change your name” to confirm your name change. Now the changed name should reflect in Gmail and other services.
Changing first and last name on Gmail
If you are looking to change the first and last name on your Gmail i.e names other than your Google account then you can use the option available as part of Gmail Settings.
Step 1: Login to Gmail account and select Settings from the drop down (available at the top right hand corner).
Step 2: In the Settings screen, click the Accounts tab and navigate to Send mail as section.
Step 3: Click edit info link available next to Send mail as option.
Step 4: Now choose the second radio button and enter name of your choice. Click Save Changes button to confirm your changes.
Now any new email sent from your account will reflect the name change.