How many persons of each gender have to have a name before it is considered "unisex" would be subjective, and sometimes a name will seem unisex to many people if a very famous person of the opposite gender from the name's normal use bears it, even if there are very few other persons of the famous person's gender with the name.
Michael would often be thought of as unisex in the USA simply because of the fame of the actress
Michael Learned. And it certainly has been used for girls, because
Michal is normally pronounced the same as
Michael in the USA and
Michal is a female name in the Bible.
Anyone who used to watch the American soap opera "One Life to
Live" would think of
Dorian as unisex because one of the most prominent women characters on that show was named
Dorian.
https://en.wikipedia.org/wiki/Dorian_Lord
Kyle was unisex at the start of its frequent use due to the fame of model and singer
Kyle MacDonnell, who was prominent in the very early days of television in the United States.
Kyle was among the top thousand names for girls in the USA between 1950 and 1990. I was born in 1951 and knew two girls named
Kyle back when I was in high school.
https://en.wikipedia.org/wiki/Kyle_MacDonnell
Clare was a short form of
Clarence in the USA and some parents named sons
Claire because of that. There was a man who was a member of my church in Omaha, Nebraska named
Claire who just died last year.
Julian was unisex back in medieval times and the female English
Saint Julian of Norwich is still somewhat famous and so would give that name a unisex feel to those who know a good bit about her.
https://en.wikipedia.org/wiki/Julian_of_Norwich
The actors
Blake Lively and
Ryan Reynolds named their daughter
James in 2014 and so those who pay attention to celebrity baby names now think of
James as being unisex. (Note
Blake itself is a formerly male name turned unisex recently.)
I'm pretty sure I have run across examples of
Aiden and
Flynn used for girls, and almost any mostly male name will be used for a girl in the USA somewhere sometime.
This message was edited 2/29/2024, 2:50 PM