I'm French and my son's name is Camille. It was exclusively a masculine name until the 19th century (Camille Pissarro, Camille Desmoulins, etc.) then gradually became feminine. By the 80s and 90s, it was overwhelmingly used for girls, but now it's pretty evenly split again, with boys starting to slightly outnumber girls. What i find fascinating is that i don't really like Camille as a girl's name but i love it for a boy! It conjures up completely different images in my mind.

There are many other popular unisex names in France right now: Charlie, Sacha, Lou,...