I’m not sure to what extent it is the same in other cultures, but in English there are quite a few names which sound exactly the same whether they are for boys or girls, it’s only the spelling which can differentiate. I know that these days it is very fashionable to give children names which are anonymous as far as gender is concerned, names which might have been surnames, names which might be natural things such as seasons, fruit, weather events… but actual traditional names, there are quite a few!
Ashley/Ashleigh, Julian/Julienne, Peter/Peta, Robin/Robyn… and there are many more where only the spelling is different; there are others where not even the spelling gives a clue unless the person is standing right there in front of you, Hilary, Evelyn, Rowan, Toby, Lee, plus although abbreviated names or nicknames – Sam, Sammy, Jo, Joey, Jamie, Terry.
My name isn’t that unusual, but there are still people who haven’t come across it before, and think I might be male, or that I’m actually Louis or Lewis…there are also people who meet me face to think I am Louise, Lucy or even Loris!
Gabriel/Gabrielle Lindsey/Lindsay, Sidney/Sydney… and there must be many more!