Change the name on your Google Account
You can change the name on your Google Account by editing your Google+ profile. Editing your profile name in Google+ will change your name in all the Google products you use for this account. For example, you'd see your name change in Gmail if you send emails using your Google Account name and YouTube if you’ve linked your YouTube channel with your Google+ profile.
You can also edit other profile details such as your birthday or work experience, and control how you share that information by changing your Google+ profile settings.
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