How old do you have to be to change your name?

I don't want a dramatic name change just from my real first name to my nickname. How old do you have to be for this to happen?How old do you have to be to change your name?I believe the age is 18. 2 b sure, u should check ur state's laws about this. that will give u the most accurate answer and tell u the steps u need 2 take 2 make ur name change official.
How old do you have to be to change your name?
19
How old do you have to be to change your name?
12 and older.
18