How to change your name on Facebook
Following steps will guide you to change your name on Facebook.
After the login Facebook you can see the following interface.

You can see the drop down option on the top of right side and go to the settings.
Then you can see the following interface.

You can see your current information of your Facebook account. Then you can see the Edit button in front of the name and click the edit button.
Then you can see the following interface.

Now you can change your name as you wish.
After changing the first name, middle name, surname, click the review change button.
Note :
- Please make sure about the name which are allowed on Facebook?
Go to the following link and check which name allowed on Facebook.
https://www.facebook.com/help/112146705538576
- If you change your name on Facebook you should wait for 60 days to change it again.
Just what I was looking for, regards for posting.