Carmen

Also Polish:

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https://pl.m.wikipedia.org/wiki/Carmen_(imi%C4%99)
https://pl.m.wiktionary.org/wiki/Carmen
https://www.behindthename.com/name/carmen/top/poland
https://dane.gov.pl/pl/dataset/1667,lista-imion-wystepujacych-w-rejestrze-pesel-osoby-zyjace/resource/54110/table?page=1&per_page=20&q=Carmen&sort=

Also Portuguese: https://www.behindthename.com/name/carmen/top/brazil

At least among Italian-Americans (unsure about how the name is used in Italy itself), Carmen and Carmine are sometimes pronounced the same, so Carmen has been given to boys as well (though it's still more commonly a feminine name).

Also Dutch: https://www.meertens.knaw.nl/nvb/naam/is/Carmen

Carmen was also traditionally used as a boys' name.

Also French: https://meilleursprenoms.com/popularite-prenom/Carmen

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Also German: https://forebears.io/forenames/carmen [noted -ed]

Multiple sources define the given name Carmen as (possibly?) gender-neutral.

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Sources: https://en.m.wikipedia.org/wiki/Carmen_(given_name)
https://forebears.io/forenames/carmen
https://www.names.org/n/carmen/about
https://en.m.wikipedia.org/wiki/Spanish_naming_customs (I think)
https://babynames.com/name/Carmen
https://www.behindthename.com/name/carmen/top/united-states
http://www.nancy.cc/baby-name/carmen/

With 566 151 bearers, Carmen is the 4th most common feminine given name in Venezuela (2014 Data). With 456 327 bearers, Carmen is the 9th most common feminine given name in Spain (2014 Data). With 267 488 bearers, Carmen is the 9th most common feminine given name in Peru (2014 Data). With 122 870 bearers, Carmen is the 2nd most common feminine given name in Puerto Rico (2014 Data). With 526 bearers, Carmen is the 9th most common feminine given name in Aruba (2014 Data).

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Source: https://forebears.io/forenames/carmen

Also Provençal: https://ieo-oc.org/spip.php?page=article&id_article=300 --- Source: Institut d'Estudis Occitans

Also used in Slovene: https://sl.wikipedia.org/wiki/Carmen_(ime)

Also occasionally used in Estonia: https://et.wikipedia.org/wiki/Carmen_(eesnimi)

In English speaking countries, this name is likely more common than the original Carmel. (actually, I never even knew Carmel was a name...)

Also used in Portuguese. The traditional spelling is Carmem, but plenty of people use Carmen as well.

Also Italian. [noted -ed]

In Spain Carmen is the commonest female name of all. Any Spaniard knows at least 10 Carmens, and more than one in their family. It is not that it is an ugly name but so overused that it sounds like an empty word.