Seeing or hearing a name can mean many different things, or it can just be a random dream event. Consider the context, and what it means to you personally, if anything.
Saying someone's name can mean you are focusing on that person or the idea of communicating with them.
Someone saying your name can mean that you're perceiving the focus to be on you, or you are thinking about someone communicating with you or trying to get your attention.
Someone calling you a bad name could represent feelings of being disrespected, taunted, or rejected somehow in your life.