Where can change my last name

How to Legally Change Your Name - FindLaw
change your name with the intention to mislead, which usually involves taking the name of a famous person (courts typically do not allow this, unless you have a convincing reason that's not related to the famous person or the use of his or her name)

File a Petition to Change Your Name - name_change_selfhelp
The court process of getting a court order after filing a Petition for Change of Name can take up to 3 months. First, you file your petition. Then, you will get a court date between 6 and 12 weeks away. If you follow all the required steps and the court approves your request, you will get a court order called.

Name Change after Marriage - New Zealand - My Last Name
MyLastName is here to help make the namechange process easy. We've researched the correct way to update your lastname with over 150 organisations in New Zealand, saving you valuable time and any hassles. Purchase our kit and you'll receive a comprehensive namechange package to help.

FAQ - NameChange.org - Get Your Name Changed Fast
If you change your name through the legal namechange process, you canchange your name on your birth certificate but it is not required.