It is only the first name where the problem comes in. My son has a middle name that is the same as one of his uncles first name. There is so many problems associated with using the same first name for father and son. I have it even worse as my father insisted that I have his complete name so he could have a Jr. It has caused so many problems over the years. I always wanted to change my name but never got around to doing it. Now I just need to live as far from him as I can so I am not confused with him if I go anywhere and they ask for my name.