Does Gordon know who Batman is in Gotham?

Does Jim Gordon know that Bruce Wayne is Batman? That, friends, is one of the biggest mysteries in Gotham. Gordon has hinted that he’s figured it out, but he can’t admit his knowledge because Batman is a vigilante and as police commissioner, he’d be forced to bring him in.

How did Jim Gordon know Batman identity?

It takes Gordon 20 minutes of honest detective work to confirm Batman’s identity. He knows who Batman is. He’s figured it out a long time ago. He consciously wills himself to be ignorant, as one does when they are associating with someone who works undercover.