I'm going to laugh at a kid's name
What makes the child's name so funny?
He has an unusual name, it will be hard for him growing up.
You shouldn't laugh at other people's names. The have no control over that. You should respect other people's names and not make judgements about them.
I guess you are right it would not be a good thing to do.
I think you are doing the right thing. You would not want someone to make fun of something about you.