She is going to find that after a while, even her son is going to introduce himself as Max after a while. Just to avoid the sheer embarrassment or bullying by the other children at school later in life.

I wonder if she thinks he is going to be destined for greatness as a lawyer or future SCOTUS judge or something where a big heavy name would seem normal.

My father misspelled my first name, and rather than be called the wrong name ALL my life, I shortened it into a nickname.

Now, when my name is said, I correct it one and state I prefer to be called Misa instead.

After I corrected it, many have said to me,” I can see why, no problem.”

Now, when I see someone with an “original” spelling of a name, I cringe a little for them, I always ask them to pronounce it so I don’t mangle it. Some will say they prefer (nickname) others will just give their pronunciation of their name, and we move on.

I would say just wait and see which name your nephew chooses later.

Im sure you already know this, but your sister has unfortunately lost her mind. I get she’s postpartum and has this cool new baby, but who has a carefully curated vision of their kid’s name? Someone who’s determined to be so extra as to drive friends and family insane and has a really distorted view of the world. It’s just silly and I guess I’d probably humor her out of fascination at someone so odd, but it’s not going to last. People call babies all kinds of goofy nicknames so she better get used to it in a hurry or she’s going to waste a whole lot of time repeating her son’s full name and dealing with the looks from folks who wonder if she’s suffered a head injury. I’m sorry but this is funny to me, I’m sure it matters to her but it’s hard to take something so goofy and pretentious seriously. Good luck and NTA.

The normal version of this argument is “Hey, my kid’s name is Alex, please don’t call them Alexander / Axel / Alan / Alvi”, not “Hey my kid’s name if Sunshine Destroyer Glory-Holly-Molly the 3rd please don’t call them Buddy”.

I’m a teacher and that kid is going to get a lot of shit if his mom don’t put her ego aside. I can’t even read that name, I would call him at best Maximilian but nothing else.

NTAH. I would at least call him his full first name. It’s like naming your child Matthew & others calling him Matt even though you want him called Matthew.

I get it’s a mouthful to call him “Maximilian” but that’s his name. I don’t agree with calling him his whole name. That’s absurd.

You can airways resort to a special name that has nothing to do with his legal name. Like bubba or something

OMG! “Carefully curated” their child’s name and you’re “disrespecting their vision.” What a pretentious AH. He’s a human being, not an art exhibit.

She’s in for a world of frustration when peers and teachers start using a nickname for him. Your sister is not doing her kid any favors, and I feel bad for your nephew for the many years ahead of this kind of ridiculous nonsense.

NTA.

New first time parents who live on their own are dealing with too much and it makes them weird. If you have to draw a line make it an important one. Personally, I’d comply in public and make fun of them in private. Let the community show them how names work. Once he’s old enough for other children to call him by name it’s not going to have anything like 11 syllables.

NTA. Your sister is as delusional as the woman who wanted her son’s teacher to punish children who called the kid Andy instead of Andrew. When little Andy introduced himself as Andy.

Since full names are only used when you’re in trouble, the kid is going to develop a persecution complex. And what is Mom going to call him to drive home the point she’s mad at him?

Wait until the kid gets to school. I can see mom now asking the teacher to police what the kids call her son on the play ground. Oy.

OP, you have to be careful, because your sister is making it clear that this may well a hill she will gladly die on. Step carefully.

Personally, I think your sister is off her rocker with “curating” and having a “vision”.

NTA

People don’t think about a name when the child will be growing up and going outside. No kids are gonna call him by three names and if they do, they are gonna make fun of that kid like nobody’s business When he starts school the teachers are NOT going to call him by 3 full names. Your sister is nutz!! NTA!

NTA it’s going to be shortened when he starts school, and he will probably prefer the nickname. That’s what I’ve seen happen in similar situations. Sure, they are the parents and all that, but it won’t be long before it won’t be their decision, it will be MAX’s. 🙂

I prefer my full first name and not the nickname common for my name. I usually do not correct people (now) unless asked what I prefer and I (obviously) do not insist on my complete (first, middle, last) name. I did however, insist on no nicknames as a child.

This reminds me of Squire Sebastian Senator (I think that was the order)

I read this years ago about some lady who named her kid that and demanded everyone call him by his full name

Everyone thought she was insane. I forget what happened

Nta. But you should start adding more to his name each time to show her how ridiculous it sounds. Maximilian Octavius Peregrine First of his name, taker of naps and filler of diapers, Lord of shrieking cries, and Waker of Parents

So naturally, what you need to do is tell your sister that you have changed your name to something equally or even longer and ridiculous, and correct her every time she does not refer to by said name.

I, unfortunately, think that you should use the birth name.  The parents picked it out, and as soon as he goes to school it will be shortened.  But in the meantime this isn’t the hill to die on.  

I don’t have time or bandwidth in my life for nonsense like that. Stop responding to her completely. She’s going to be a nightmare of a mother, and you don’t need to watch the car crash.

You are NTA, and I am naming my next cat Maximilian Octavius Peregrine.

And I will call him by his full name.

“Maximilian Octavius Peregrine! Get off the counter!” 🤣😾

I have Max – just Max – and people add things on Maximus , Maximillian, Maxi. No matter what way you do it people will change the name. She better get used to it now.

Make a nickname out of his full name. Example my husbands initials were R A T. Using your names he would be MOP. That way you are “honoring” little MOP.

I imagine his mother is going to lose her sh*t the first time she has to write her son’s name on a government form and realizes there isn’t enough space.

Lol my son has the opposite problem, he’s 7 and has a 3 letter name and he wants a nickname to shorten it but it can’t go any shorter lmao

NTA. I’ve heard of this happening before, and I’ve never understood it. It’s like these people forgot what it’s like to be a kid.

Yeah NTA. It’s absurd your sister wants you to call him that.. honestly poor children if she denies nicknames.

NTA. She needs to realize that as he grows up and starts going to school, he’s going to want a shorter name.

Your sister sounds like a doofus and God bless her child for having to deal with parents like that.

Call him nephew. It can potentially avoid drama depending on exactly how unhinged she is

Nta.

The issues is that it is “3” separate names consisting of about 9 syllables. Too much!!!!!!

ESH Is there not a compromise of calling him Maximilian, but not all 3 names? 

why are all the crazy people naming their child maximilian😭

Your sister is a couple of clowns 🤡 short of a circus.

Is he “commander of the armies of the North ” ?

I call all crotch goblins homo sapiens

NTA. Your sister sounds exhausting.

Wait….she wants you to use all 3?

NTA. Kindergarten is gonna be lit!

Call him M.O.P.

Problem solved