i dont really understands what your asking here louise, are you saying that you put the wrong fathers name down and now want to change it cause you think hes a waste of space, and that your new partner ''deserves'' to be called the father? Or is it a case of you didnt know who the father was when you registered your son and have since discovered who is? i hope its the latter as if you are looking to change it just because you feel the named father is a'';waste of space'' then that is soooo wrong. Despite what you may think of your ex, your son deserves the right to have both mother and fathers name on his certificate. legally i dont think you will be allowed to do that anyway, not at least without your ex's consent.