Unisex names

I have long felt this OP. I’ve always been interested in names and have access to a lot of names over the centuries in the course of my genealogical research and I can’t recall a single name in this category.
Christian is an interesting example though I think it was used for boys way, way back and then it became unisex around the 15th - 16th centuries, and now it seems to be a male name — can’t think of female Christians.
The problem is that once a name becomes used predominantly for females it tends to become avoided by parents with sons , depleting the number of names suitable for boys — even a difference in spelling doesn’t seem to make much difference eg Lindsay/Lindsey.
Francis is still used butI think that’s because Frank is currently trending upwards but I can see that eventually being regarded exclusively as a girls’ name. Likewise Robin.

I wouldn't really call James a unisex name, or even Cameron in the UK, though it might be getting that way in the US. They're boys' names that occasionally get used for girls, and attract a lot of comments when they do.

I can't think of any names that were originally 100% girls' names and then became unisex or boys' names. I think Dale and Lee were used more often for girls in the 1950s than they were later.