I was wondering I live in pittsburgh pa and I was wondering if I am able to change my children's last name without his consent??

No you can not, ** if he will not, you can try to take him to court and get a judge to order it, but I doubt if you would find a judge to rule for it, unless there is some proven need for it

Im curious how you can ask a question concerning "him" and your name on here that you have chosen is "daddy123" which is also male.

What is going on ?