A name I was surprised by was someone I know naming their daughter Miles/Myles, which is such a male name in my mind. It might even be based on the Latin word for soldier. It's not one I've seen used for a girl anywhere else, yet.
Edited slightly for series spoilers:
> "Well, I wish you every joy," Miles went on [...] He managed a wink. "Name the first one after me, eh?"
> [She] grinned. "I'm not sure she'd appreciate that. Milesanna? Milesia?"
> "Milesia sounds like a disease," Miles admitted, taken aback. "In that case, don't. I wouldn't want her to grow up hating me in absentia."
-- Memory (1996) by Lois McMaster Bujold
In the series, Miles having a name meaning "soldier" is, er, persistently thematically significant.
Edited slightly for series spoilers:
> "Well, I wish you every joy," Miles went on [...] He managed a wink. "Name the first one after me, eh?"
> [She] grinned. "I'm not sure she'd appreciate that. Milesanna? Milesia?"
> "Milesia sounds like a disease," Miles admitted, taken aback. "In that case, don't. I wouldn't want her to grow up hating me in absentia."
-- Memory (1996) by Lois McMaster Bujold
In the series, Miles having a name meaning "soldier" is, er, persistently thematically significant.