Clair

Also Portuguese (Brazilian): https://www.behindthename.com/name/clair/top/brazil

Also Norman: https://nrm.wikipedia.org/wiki/Saint_Clair

Clair is also used as a feminine given name in French and English (as a French form of Clara), alongside Claire and Clare. However, Clair is more common for males. So, I think that the "Gender" of this name should be updated from "Masculine" to "Masculine & Feminine"; and the "Meaning & History" section of this name should be updated to read, "French form of Clarus or Clara". For more information, see both the comments down below by users @LionB3 and @leoBeyene2002 and the Sources I have provided in this comment.

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Sources: https://www.behindthename.com/name/clair/top/united-states
https://www.behindthename.com/name/clair/top/england-wales-historical?type=rank
https://en.m.wikipedia.org/wiki/Claire_(given_name)
https://forebears.io/forenames/clair
https://www.names.org/n/clair/about
https://www.babynames.ch/Info/Name/naClair
https://fliplinestudios.fandom.com/wiki/Clair
https://en.m.wikipedia.org/wiki/Eclair_Fifi
https://names.darkgreener.com/#Clair
https://www.popular-babynames.com/name/clair
https://pokemon.fandom.com/wiki/Clair
https://en.m.wikipedia.org/wiki/Clair_Huxtable

Clair for boys and Claire for girls.

I don't know why some people don't understand the difference between masculine and feminine forms. "Clair" is the masculine form, while the feminine form is either "Claire" or "Clare".

The feminine form is supposed to be "Claire".

Traditionally, this is the masculine form of the name; the feminine form is "Claire".

Not given in France or very very very rare.