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Re:US boy names that became girl names and vice versa by conductr on Monday November 02, 2026 @01:43PM (#50341537)
I have no data but feel that boys tend to get the family names and biblical names (in US anyways). It's rare to hear of a girl named Elizabeth III or Mary Junior but quite common for those concepts in boys. So I think the boy names are heavily weighted on probably the most popular ~25 or so names. Since girl names are more free to follow whatever is fashionable at the time, trends move faster.

My son is named after his grandfather, and it's an overly common name in English (American and British). Definitely a top 3 most common for last several centuries

Re:US boy names that became girl names and vice versa by macintux on Monday November 02, 2026 @02:07PM (#50341954)
> I have no data but feel that boys tend to get the family names and biblical names (in US anyways).

Curiously, in the last few months in the U.S. I've met a Tamar and an Esther, both women given family names that were drawn from the bible.

Re:US boy names that became girl names and vice versa by senderista on Monday November 02, 2026 @06:24PM (#50345610)
Not uncommon Jewish names.
Re:US boy names that became girl names and vice versa by macintux on Monday November 02, 2026 @08:21PM (#50346776)
Certainly Esther is reasonably common in the U.S., but when I saw her name I was expecting someone about 60 years older.
Re:US boy names that became girl names and vice versa by conductr on Tuesday November 03, 2026 @08:42AM (#50351880)
There is a small trend of using very old names like this, not necessarily biblical but just old sounding. We know an elementary aged girl named Lydia and I always think the last person I knew by that name was my great-great grandmother.
Re:US boy names that became girl names and vice versa by mbowcut2 on Monday November 02, 2026 @03:10PM (#50342965)
I thought girls didn't use junior, III, etc. because traditionally girls adopt their husband's last name, so they would no longer have the same full name as their mother.
Re:US boy names that became girl names and vice versa by conductr on Monday November 02, 2026 @03:22PM (#50343139)
I hadn’t thought about that but makes me wonder if it will become more common since not taking your husbands name has become more common. I wouldn’t think so, but I’m pushing 50 and can’t think of ever meeting a female named after her mom so if it shows up at all in the data that would be interesting.

Funny enough, I think it’s common for the female middle name to be a mom/grandma/aunt name.

Re:US boy names that became girl names and vice versa by nemomarx on Monday November 02, 2026 @03:26PM (#50343201)
Doesn't everyone do that? My brother has a grandparents name as his middle. I never thought of it as a gendered tradition

Is it a specific cultural thing I wonder

Re:US boy names that became girl names and vice versa by conductr on Monday November 02, 2026 @03:50PM (#50343520)
Possibly. I’ve just heard it more with girls and wouldn’t expect it’s evenly common on relative basis but certainly could be wrong
Re:US boy names that became girl names and vice versa by Root_Denied on Monday November 02, 2026 @05:55PM (#50345222)
All the men on my dad's side of the family have the same middle name, with just a different first name.

It's apparently not an uncommon tradition in several areas of the world to either have either the first or middle name be shared, and then a unique name for the unmatched one (e.g. John Alan Doe, John James Doe, John Matthew Doe - Alan John Doe, James John Doe, Matthew John Doe).

Re:US boy names that became girl names and vice versa by DamonHD on Tuesday November 03, 2026 @02:45AM (#50349216)
My children have no middle name, and neither did I or my brother.
Re:US boy names that became girl names and vice versa by Muromec on Tuesday November 03, 2026 @04:34AM (#50349870)
Eastern Europe of the Slavic variety enters the chat with a concept of patronymics. Nobody asks you if you want to have a middle name, it's always a deriative of your father's, by law.

My son was born in a country with doesn't write those in a birth certificate. When we went back, guess what -- they still added it by deriving it from my name.

Re:US boy names that became girl names and vice versa by Xirdus on Monday November 02, 2026 @04:36PM (#50344155)
My guess is no, because carrying the family legacy is falling out of fashion as much as taking the husband's name, maybe even more so.
Re:US boy names that became girl names and vice versa by ozim on Monday November 02, 2026 @08:26PM (#50346798)
Family legacy is quite obsolete in modern society.

Not every society wants to be modern.

Modern society cuts family ties which is a lot of times not so great, but on the other hand it saves lots of people from abusive relationships.

Once you can leave abusive parents or siblings, whole world of opportunities opens. Then again on the other hand not everyone can deal with such a freedom.

Yet still I am personally supportive of modern approaches where people can choose their destiny and not being tied to a family legacy.

Re:US boy names that became girl names and vice versa by eastbound on Tuesday November 03, 2026 @12:58AM (#50348588)
At least in France, it means the father leaves and the kid doesn't have enough money to study — and we're transitioning to the workplace providing the funding for studies (apprenticeships where the company pays 10k€ per year, empoverishing the worker).

I'd rather see the name of the father be stuck to the kid so if he's a failure, everyone knows who failed him.

Re:US boy names that became girl names and vice versa by brabel on Tuesday November 03, 2026 @03:06AM (#50349326)
We will probably find out very soon why humans organized the way they did for millennia before we decided to change everything.
Re:US boy names that became girl names and vice versa by fnordian_slip on Tuesday November 03, 2026 @03:55AM (#50349637)
Please don't vaguepost on hn. It's hard to guess if this is an attack or a defense of the nuclear family (us other commenters would have to guess if you know how recent that phenomenon is).

Therefore, you just invite confusing answers and useless discussions in your reply.

Re:US boy names that became girl names and vice versa by Xirdus on Tuesday November 03, 2026 @05:31AM (#50350237)
To me, it's very clear GP was writing in support of traditional values, of which nuclear family is one.
Re:US boy names that became girl names and vice versa by ipaddr on Tuesday November 03, 2026 @08:46AM (#50351922)
Please don't gatekeep hn posts. Comments with little interests will receive little replies and others will rise. You adding a reply helps the post you dislike rise over others.
Re:US boy names that became girl names and vice versa by kibwen on Tuesday November 03, 2026 @09:49AM (#50352694)
The idea of surnames is an anthropologically recent tradition. Humans living in small communities had no practical need for multiple names. Surnames mostly arise in societies with relatively strong centralized states so that the government has an easier time tracking its citizens.
Re:US boy names that became girl names and vice versa by prmoustache on Tuesday November 03, 2026 @03:15AM (#50349396)
That is a bit cliché isn't it? According to INSEE in France 12% of the kids were in shared custody and that is the mean. At 10 y old it is around 15%. And around 24% of the fathers get full custody.

So while there is a bias towards mother custody of the kids (around 2/3), there is still 1/3 of the kids where it is not the case.

Also, not having full custody of kids doesn't mean the father is leaving completely from the kids life. More often than not the kids need to stay with one parent because job and cost of living forces them to be more regionally apart (only 37% of kids living in same town). That doesn't mean the father do not see the kids in the weekends/holidays nor contribute financially to study.

So the reality is way more nuanced than you make it out to be in a small comment.

Re:US boy names that became girl names and vice versa by ozim on Tuesday November 03, 2026 @04:27AM (#50349826)
But then if a child succeeds despite whatever failure his father was he is stuck with that looser name.
Re:US boy names that became girl names and vice versa by braj0 on Tuesday November 03, 2026 @09:25AM (#50352376)
Why not have him take the Maiden name so everyone can know the mother who failed him?

Why do you frame it as only fathers can fail children? Or only men can do wrong? Women can pay for studies as well, and have just as much duty to their children.

Re:US boy names that became girl names and vice versa by vforgione on Monday November 02, 2026 @01:52PM (#50341689)
Anecdata: I’m a guy and a III. My son almost was a IV but we chose another first name and used my (and my dad’s and my grandfather’s) name for his middle name. My great grandfather had a different name, but I think his dad and maybe grandfather had the same name as me.
Re:US boy names that became girl names and vice versa by georgeburdell on Monday November 02, 2026 @02:15PM (#50342055)
Not to offend, but I think it has declined because this naming of Jr, III, and so on has come to be associated with poor or rural people. For what it’s worth, I have a relative who is a IV
Re:US boy names that became girl names and vice versa by cogogo on Monday November 02, 2026 @02:28PM (#50342305)
Never heard that framing before. In New England the practice is associated with blue-blood wealth.
Re:US boy names that became girl names and vice versa by JumpCrisscross on Monday November 02, 2026 @02:49PM (#50342635)
This appears not to have been rigorously studied. Anecdotally, the further west one goes in America the higher the likelihood a suffix indicates low SES.
Re:US boy names that became girl names and vice versa by conductr on Monday November 02, 2026 @03:04PM (#50342864)
Well it’s likely the adoption by the Latinx. I think that demo grows as you move west. In Texas it’s become more common in that demo and the redneck whites. The monied still have it but more commonly go towards super preppy names like Tripp, Shep, Archer, Preston. A common theme I see if you dig deeper is they name one of the boys the mom’s maiden surname. But in general, surnames as first names is very common in this demo. I mostly exist in this demo of WASPs and my wife has I think 4+ cousins named in the mom maiden name format, I didn’t realize it was a bigger thing until we had kids and learned a lot of our friends had also done this (I thought maybe just unique to my wife’s family, but bigger trend). My family wasn’t monied so I wasn’t really exposed to it until adulthood.

Sorry to bring up race but it’s the US and the SES is too highly correlated to ignore these in a data conversation and we all do things slightly differently roughly by race/background, there’s no monoculture in the US

Re:US boy names that became girl names and vice versa by JumpCrisscross on Monday November 02, 2026 @03:26PM (#50343207)
Eh, in my experience it’s all over the place. Scottsdale’s suffixes are largely not Latin. Instead, it probably indicates someone who sells real estate or crypto.
Re:US boy names that became girl names and vice versa by ozim on Monday November 02, 2026 @08:38PM (#50346888)
Fun part is that no one can stop poor people from imitating rich ones, so they do. Then rich ones start coming up with other ways to show to the others that they’re rich and poor copy over and over again.

I used rich as shorthand placeholder of blue blood, noble, famous and rich. Not everyone who is rich is noble and noble doesn’t mean they are rich.

Re:US boy names that became girl names and vice versa by vintermann on Tuesday November 03, 2026 @02:03AM (#50348954)
There have historically been a lot of ways poor people were stopped from imitating rich ones, and not just the obvious ones involving spending money. The US is pretty enlightened in that there are no name protection laws that I know of. In many European countries, you still need permission from every carrier of a rare last name if you want to take it.
Re:US boy names that became girl names and vice versa by ozim on Tuesday November 03, 2026 @03:55AM (#50349638)
There have historically been also ways where poor stopped rich from being rich and having fancy name was making one a target.
Re:US boy names that became girl names and vice versa by dj_rock on Tuesday November 03, 2026 @01:08AM (#50348633)
Yes. Like that William H Gates III from Seattle.
Re:US boy names that became girl names and vice versa by rf15 on Monday November 02, 2026 @02:37PM (#50342436)
coming from europe: in my experience "fancy names" are either blue blood wealth OR regular people wanting to look like blue blood wealth. So I feel you both have a point here.
Re:US boy names that became girl names and vice versa by thaumasiotes on Monday November 02, 2026 @04:05PM (#50343742)
"Junior" might be associated with poor or rural people, but "III" and "IV" can only convey the absolute maximum level of pompousness.
Re:US boy names that became girl names and vice versa by vel0city on Monday November 02, 2026 @08:42PM (#50346908)
I've known two people in my life who went by some version of Trey as a nickname, as in some slight change if tres, three.
Re:US boy names that became girl names and vice versa by conductr on Tuesday November 03, 2026 @08:53AM (#50351984)
Or 3 James was confusing so they probably had a James, a Jim, a JT. No attempt to obscure just trying to yell at a specific person when the trash needs to be taken out.

I know a lot of people that just go by their middle names in this scenario. Even my brother was named like this and the intent from the beginning was he’d go by his middle name.

I think maximum pompousness goes to those that make sure you know they’re a third or fourth. If I meet you at a cocktail party and will never meet you again, don’t introduce yourself as William H Gates the Third, just say Bill.

Re:US boy names that became girl names and vice versa by conductr on Monday November 02, 2026 @02:02PM (#50341863)
I’d agree the trend is waning if that’s what you’re getting at but I think it is baked into the history of this dataset and is also still significantly more common for boys than girls

Also, IV is really quite rare for boys too. Junior still super common.

Re:US boy names that became girl names and vice versa by rightnutwingjob on Monday November 02, 2026 @02:46PM (#50342598)
Why would anyone make their kids legal name include “Junior”.

How does that work when they’re 60 with grandkids?

Re:US boy names that became girl names and vice versa by KineticLensman on Monday November 02, 2026 @03:27PM (#50343220)
(Brit here)

My first and middle names are John and Richard. A couple of times on trips to the US people have read my initials as 'Jr'. Very surprising the first time! Has never happened to me in the UK.

Re:US boy names that became girl names and vice versa by alistairSH on Monday November 02, 2026 @03:15PM (#50343037)
Yeah, it's a bit weird...

On some forms in the US, it's listed as a suffix. Some agencies enforce it, others do not (SSA does not, for example). And colloquially, when"Senior" dies, the son often stops using "Junior" (though that's not a legal change).

UK, Can, and AUS are similar, but not exactly the same as the US. And NSW in AUS complicates matters by outright prohibiting roman numberals are Jnr/Snr suffixes. Mexico has more restrictions due to the mothers-last-name, fathers-last-name naming convention.

Personally, I dig the Nordic and Arabic "x, son of y, son of z, son of..." patterns.

Re:US boy names that became girl names and vice versa by ascorbic on Monday November 02, 2026 @06:19PM (#50345546)
The UK doesn't really use those kind of suffix at all unless you're the king, so I'd imagine it would be quite hard with forms.
Re:US boy names that became girl names and vice versa by ninalanyon on Monday November 02, 2026 @06:36PM (#50345774)
> the Nordic

Long obsolete except in Iceland.

Re:US boy names that became girl names and vice versa by somenameforme on Monday November 02, 2026 @08:04PM (#50346626)
? Jameson, Smithson, Thomson, Wilson, etc, etc.
Re:US boy names that became girl names and vice versa by vintermann on Tuesday November 03, 2026 @01:56AM (#50348918)
Not so long. My grandfather, born 1908 in Norway, kept the proper patronym as a middle name since he would otherwise have the same full name as his father. Everyone had to take fixed last names by 1923, but it wasn't uncommon to keep the patronym as a middle name like my grandfather did.
Re:US boy names that became girl names and vice versa by alistairSH on Tuesday November 03, 2026 @09:28AM (#50352431)
Not actively used, but still see the occasional ...son on a surname.
Re:US boy names that became girl names and vice versa by terribleperson on Monday November 02, 2026 @11:15PM (#50347989)
How the heck can one state of Australia prohibit certain types of names? Doesn't that cause all kinds of problems with documentation mismatches if someone moves?
Re:US boy names that became girl names and vice versa by cowlevel on Monday November 02, 2026 @11:16PM (#50347998)
It's not unusual for someone to change their name when immigrating. Have you met anyone in your presumably English-speaking country who wrote their name in Korean characters? Probably not because they convert it to the nearest allowed name.
Re:US boy names that became girl names and vice versa by dpark on Tuesday November 03, 2026 @02:29AM (#50349117)
They don’t change names when they move. The names are registered in the location of birth.

But your name might get mangled in some states if it doesn’t fit, same as it might in the US if some system doesn’t properly handle, e.g., multiple middle names or special punctuation.

Re:US boy names that became girl names and vice versa by alistairSH on Tuesday November 03, 2026 @09:30AM (#50352449)
Dunno, but Iceland also enforces it's son-of/daughter-of naming convention to the point some names are explicitly prohibited (or is it explicitly allowed, I forget if it's a black-list or white-list).
Re:US boy names that became girl names and vice versa by k12sosse on Monday November 02, 2026 @03:00PM (#50342802)
they become Jay-Are
Re:US boy names that became girl names and vice versa by thaumasiotes on Monday November 02, 2026 @04:08PM (#50343779)
https://en.wikipedia.org/wiki/Junior_Soprano

And it's not even part of his legal name.

> How does that work when they’re 60 with grandkids?

They get called "grandpa" like everyone else with grandchildren.

Re:US boy names that became girl names and vice versa by nilamo on Monday November 02, 2026 @04:15PM (#50343862)
The Sopranos had a main cast Junior, who was also the oldest of the team. Just for some anecdata
Re:US boy names that became girl names and vice versa by Root_Denied on Monday November 02, 2026 @05:57PM (#50345249)
I have Junior in my legal name - it's the bane of my existence when it comes to legal forms because of how inconsistent various systems handle it, even for different government systems. This became especially true after 9/11 and the Patriot Act pushed these systems to update and go digital because they couldn't get their act together to coordinate for years.
Re:US boy names that became girl names and vice versa by bonoboTP on Monday November 02, 2026 @06:33PM (#50345740)
Ferenc Puskás the Hungarian footballer had grown up with the nickname Öcsi, meaning little brother. Later when he got old he was referred to as Puskás Öcsi bácsi, meaning Uncle Little Brother Puskás...
Re:US boy names that became girl names and vice versa by robin_reala on Monday November 02, 2026 @03:58PM (#50343648)
There was quite a famous Elizabeth II.
Re:US boy names that became girl names and vice versa by jltsiren on Monday November 02, 2026 @05:23PM (#50344794)
She didn't get the suffix until her 20s. And it was not used to distinguish her from her mother (who was also a Queen Elizabeth) but from yet another Elizabeth who lived centuries earlier.
Re:US boy names that became girl names and vice versa by unpleasurable on Monday November 02, 2026 @11:19PM (#50348014)
Elizabeth II was the first Elizabeth who was Queen of UK
Re:US boy names that became girl names and vice versa by bregma on Tuesday November 03, 2026 @06:14AM (#50350551)
Same with the current king Charles III of England. He is the first of that name to be king of the UK (and Canada, Australia, etc). Maybe people should revert to multiple ordinals, like James VI and I in 1603.
Re:US boy names that became girl names and vice versa by psd1 on Tuesday November 03, 2026 @07:50AM (#50351400)
I don't think that's right - well, Canada and Australia ofc. The "U" in "UK" refers to James IV of Scotland becoming James of England, thus uniting the states of Albion. Charles succeeded him.
Re:US boy names that became girl names and vice versa by jcranmer on Tuesday November 03, 2026 @09:08AM (#50352189)
Scotland and England were not united into a single Kingdom of Great Britain until 1707 (under Queen Anne), and it did not become the United Kingdom (of Great Britain and Ireland) until 1800 (under George III). So technically the "U" actually refers to union of Britain and Ireland, not England and Scotland.

Before the Acts of Union of 1707, England and Scotland were not united into one kingdom, but two kingdoms that shared the same king under a personal union.

Re:US boy names that became girl names and vice versa by dspillett on Monday November 02, 2026 @06:29PM (#50345684)
> I have no data but feel that boys tend to get the family names and biblical names (in US anyways).

Or both: the family names having been chosen originally from biblical names, but not continuing for that reason.

I'm a David, and there were many Davids in my University intake year, but I suspect that has less to do with the Bible and more to do with mothers of a certain age range having things for the Davids Bowie or Essex (or both! - quite possible in my mother's case).