Open the Facebook app or website
Go to Settings and privacy
Select Settings
Tap Accounts Center
Select Personal details
Tap Name
Enter your new name
Tap Review change
Choose how your name will appear
Enter your password if prompted
Tap Save changes
Open the Facebook app or website
Go to Settings and privacy
Select Settings
Tap Accounts Center
Select Personal details
Tap Name
Enter your new name
Tap Review change
Choose how your name will appear
Enter your password if prompted
Tap Save changes