Board Thread:General Discussion/@comment-26385535-20150617021148/@comment-24674051-20150617134109

And actually, they have dropped the 'Mr.', and now just refer to him as Gold. So his Storybrooke name appears to be just Gold now, though he's also one of the few that is refered to by his EF name (discounting those that maintained their EF name to begin with).

Who knows, though. Maybe he does have a real name that has never been revealed. That's the one endearing trait of the original fairy tale that has been neglected, the fact that he had a secret name. (Or maybe they did not neglect it, but deliberately chose to have him have a mysterious name that no one knows).