My son father have me the wrong last name can I change it without his permission

Where are you at ?

Your son's father ? How did the father of your son, change YOUR name.

Are you talking about the child's name?

Sorry I was going to say that I have two kids by different fathers and I gave them both the same last name from the first father but I just found out that he gave me a wrong last name.can I change their last name to mine without any permission from the fathers. The last name my kids have is wrong anyway

Ok, so one of your children's fathers gave you a false name which is what you put on the birth certificate, correct?

Do you have proof it was a false name? If so, you may be able to go to your local bureau of vital statistics and get a change without going to court.

But the likelihood is you will need to go to court, which means the father has the right to appear at the hearing and protest.

Tough one, since it was a false name, proof of that may allow it to be changed to his correct name, but I doubt that is what you want.

You will need to go to court to get it changed, the fact he gave a fake name may help with the case. The bio fathers will be notified and can object to this in court

Yea you can but it actually cost money, depend how good the name is.
If it sounds good it would more if it's not to bad it would be cheap (something like that )
But I think you need to ask him first just to make sure.
You need permission with your children's
Just don't do it without them knowing cause it would cause a argument

Yea you can but it actually cost money, depend how good the name is.
If it sounds good it would cost more if it's not to bad it would be cheap (something like that )
but I think you need to ask him first just to make sure.
You need permission with your children's
Just don't do it without them knowing cause it would cause a argument
*Cost more

The Births, Deaths and Marriages Office (BDM), part of the Department of Internal Affairs, deals with changing names. It’s pretty easy to change your name at any age. It costs around $130 to change your name (or around $50 for a child under 2 years of age). If you’re over 18, to change your name you have to fill out a statutory declaration (the forms can be downloaded from here). This is a declaration that you have to fill out in front of a lawyer, Registrar of Births, Justice of the Peace or another authorised official. The person who saw you fill out the declaration must also sign the form. The completed form, along with evidence of your current name, date and place of birth (like a birth certificate or a passport), and the required fee can be taken or posted to the Births, Deaths and Marriages office (see addresses below).However, if you are under 18 years old, your parents have to complete a statutory declaration to change your name. This is a special form witnessed and signed by a Justice of the Peace, a lawyer, a Registrar of Births, or another authorised official. The form has to be filled out and lodged by your parents or guardians.If you are over 16, you have to consent to the name change, and have to sign the declaration form. The completed form, along with evidence of your current name, date and place of birth (like a birth certificate or a passport), and the required fee can be taken or posted to the Births, Deaths and Marriages office.If you are the parent of a child under two and want to change their name, you can just fill out the appropriate registration form. If your child is born in New Zealand you don’t have to fill out a statutory declaration, just use the BDM 36 “Request for change of name within 2 years of birth” form. It costs around $50.

Changing your name (http://www.cab.org.nz/vat/gl/roi/Pages/Changingyourname.aspx)

The Births, Deaths and Marriages Office (BDM), part of the Department of Internal Affairs, deals with changing names. It’s pretty easy to change your name at any age. It costs around $130 to change your name (or around $50 for a child under 2 years of age). If you’re over 18, to change your name you have to fill out a statutory declaration (the forms can be downloaded from here). This is a declaration that you have to fill out in front of a lawyer, Registrar of Births, Justice of the Peace or another authorised official. The person who saw you fill out the declaration must also sign the form. The completed form, along with evidence of your current name, date and place of birth (like a birth certificate or a passport), and the required fee can be taken or posted to the Births, Deaths and Marriages office (see addresses below).However, if you are under 18 years old, your parents have to complete a statutory declaration to change your name. This is a special form witnessed and signed by a Justice of the Peace, a lawyer, a Registrar of Births, or another authorised official. The form has to be filled out and lodged by your parents or guardians.If you are over 16, you have to consent to the name change, and have to sign the declaration form. The completed form, along with evidence of your current name, date and place of birth (like a birth certificate or a passport), and the required fee can be taken or posted to the Births, Deaths and Marriages office.If you are the parent of a child under two and want to change their name, you can just fill out the appropriate registration form. If your child is born in New Zealand you don’t have to fill out a statutory declaration, just use the BDM 36 “Request for change of name within 2 years of birth” form. It costs around $50.

The OP is talking about legally changing her kids names from the way this question reads. What you posted has nothing at all to do with this. Changing the name on a birth certificate for a child is more than what you're talking about.

Please don't just guess at answers and give out incorrect information.

First the info you posted is for New Zealand. This is an international site and the OP has not told us where they are. Second, The site talks more about adults wanting to change their name, but also deals with minors. It specifically states that it requires the "parents" permission. The question was whether the name can be changed without the father's permission.

Thank you for wanting to help our members, but we ask that your responses, especially in technical forums like Law, be highly accurate. Unfortunately, your response wasn't since it didn't answer the question asked and didn't deal with the differences in laws by location. Please be more careful when responding in the future.