Alex

Also Basque:

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https://www.euskaltzaindia.eus/index.php?option=com_ecoeoda&task=izenaIkusi&Itemid=&lang=es&kodea=3450&mota=izenak

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https://www.behindthename.com/name/alex/top/basque_country

Also Finnish: https://www.nordicnames.de/wiki/Alex_m

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Also Polish:

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https://pl.m.wikipedia.org/wiki/Alex
https://www.behindthename.com/name/alex/top/poland

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Also Slovene:

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https://sl.m.wikipedia.org/wiki/Alex
https://www.behindthename.com/name/alex/top/slovenia

Besides being used as a short form of Alexander and Alexandra, Alex is also frequently used in many languages as a short form of Alexis (and its forms). In Russian, Alex/Aleks is used as a short form of Aleksey. :D.

After examining others' opinion that Alex should be a girl's name because Alex is short for Alexa, Alexis, or Alexandra, which both Alexa and Alexis are already short and can be used as nicknames, it stands to reason that Alexa should be a guy's name as well, since it's short for Alexander. I don't agree with this reasoning though, names can be shortened but those shortened ones are either masculine or feminine. Based on the stats, the majority seem to agree since most with the name Alex are boys and no stats for girls in recent times.

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Personally I would choose Alex for a boy and Alexa (no ambiguity here, though that might change in the future) for a girl.

Alex is a guy's name plain and simple. Not even a debate.

In 2018, 15 is the most common age for an American (U.S.) Alex* who is registered female with the Social Security Administration. It is the 2, 477th most common female first name for living U.S. citizens.

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*as a first name, not a nickname.

In 2018, 17 is the most common age for an American (U.S.) Alex* who is registered male with the Social Security Administration. It is the 248th most common male first name for living U.S. citizens.

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*as a first name, not a nickname.

Have you watched the secret world of Alex Mack? A Nickelodeon tv show. Everyone calls her Alex but because she’s a girl- her full name is Alexandra or Alexandria.

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So Alex would be a nice name for girls, especially if it’s used as in Alexandra/Alexandria or even Alexia/Alexis for those big names being the legal name and Alex being the shortage of their full names.

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If Alexandra got a sex change, her new name would be Alexander
Or if she had a twin brother or different brother his name would be Alexander.

Alex is an awesome name for a man. Not a girl's name at all.

I am 6’5 270 pound man. My name is Alexis which is a common name for boys in non English speaking countries. When I moved to the states I started going by Alex and prefer it.

It is also used as short form of Alexandros (in Greek) and a Russian variant transcription of Aleks. [noted -ed]

Also a Hungarian name. Pronounced: AW-leks. [noted -ed]

The name Alex was given to 185 girls born in the US in 2015.

The name is also rather common in Iceland, Denmark, Sweden, and Norway. [noted -ed]

In Limburgish, this name is also used (on males, as a short form of Alexander).

Also a boys name in Slovenia, though not as popular as Aleks.

If I was born a boy I would have been named Alex. Just Alex, not Alexander. But my parents changed their mind by the time my brother came around because they thought Alex was too popular. I have to agree, there were 40,041 male Alex's born in the 2000s alone, and also 919 Alex's born in the 2000s. That's just plain Alex, mind, not counting all the Alexis' (female, 89,512, male, 17,738), Alexander's (104,903), Alexandra's (40,837), Alexa's (25,551), Alexandria's (17,929), Alexia's (14,007), Alexus's (5,416), Alexzander's (1,509), Alexandro's (1,377), Alexandrea's (1,353), and Alexys's (1,021). All in all that's 362,113 kids born in the 2000s that could be called Alex. Wow.