According to Babynames.com, yes, it can be. I see it as a boy’s name (I actually like the name a lot; it’s my boyfriend’s middle name), but it can definitely be a girl’s name.
It sounds more like a boy’s name to me, but then again, many boys names are becoming more unisex.
@Deja_vu There’s a girl called George in the Famous Five books by Enid Blyton. Her proper name is Georgina but being a total tomboy everyone calls her George instead.