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Cosmo as a baby name?

123 replies

ThatPeachSquid · 31/05/2025 14:12

Having a baby boy. Is Cosmo cool or too much? Our surname begins with a ā€œCā€ too.

OP posts:
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Theoldholeyjumper · 02/06/2025 22:03

It immediately makes me think of the character from Fairly Odd Parents so it would be a no from me because of that.

I don’t think it sounds remotely posh though and I do really like Cosimo as PPs have suggested, although I can’t imagine it flowing well with any typically british surnames so that might be something to consider if that’s the case for you

AnneMarieW · 03/06/2025 00:32

It has a really cool sound - and would make a fab middle name or even a nickname for a boy who adored everything to do with Space (and seemingly a lot of young boys go through a Space phase, if it’s not Dino’s or Vehicles).

But I think as a first name it’s a bit limiting for him unless you somehow know he’s going to be arty, preferably always live in a big multicultural city, have a more UC social set etc. I personally tend to sway towards names which sound like they could fit in on both a building site and a judge’s chambers for an easier life and I’m not sure Cosmo fits that brief.

SnowFrogJelly · 03/06/2025 00:53

Nigella chose it

HugoYorway · 03/06/2025 07:38

@SnowFrogJelly , she didn't.

SeaFloor · 03/06/2025 09:01

HugoYorway · 03/06/2025 07:38

@SnowFrogJelly , she didn't.

You’re right — her daughter is Cosima, (and apparently used to be known as Mimi. A friend of mine taught her years back.) Much nicer than Cosmo.

CrushingOnRubies · 03/06/2025 13:56

I actually quite like it.

MrsSunshine2b · 03/06/2025 14:02

My daughter has a friend called Cosmo and he's lovely, as are his family. They are both at state school and there has been no bullying about it.

TheBigFactHunt · 03/06/2025 14:10

Screams of desperation and new money.

MoistVonL · 03/06/2025 14:14

I love Singin’ In The Rain so Cosmo has nothing but happy associations for me. ā€œMoses Supposesā€¦ā€ etc

SantanaBinLorry · 03/06/2025 14:18

Hatty65 · 31/05/2025 16:03

Can you afford to send little Cosmo to a private school?

Because round our way you'd get seriously bullied for being a posh git with a name like that in any of the state schools.

That's really sad. My kid(s) have slighty unusual names amd go(went) to a rough ass state school. They have never been bullied about their names and they are certainly not the only ones with unusual or heaven forbid - forgien names 🤯

Cosmo was on my list OP, I love it.
Kids grow into their names, pick the name you ā¤ļø

bbb83 · 17/08/2026 22:49

I’m not sure if you’re aware but both the magazine and cocktail refer to a shortened version of the very different word ā€˜cosmopolitan’. Cosmo as a name however means something quite different and has been used in the UK since the late 1700ā€˜s. Whilst not common, I’m not sure anything should be locked until it’s understood.

bbb83 · 17/08/2026 22:59

I’m not sure if you’re aware but both the magazine and cocktail refer to a shortened version of the very different word ā€˜cosmopolitan’. Cosmo as a name however means something quite different and has been used in the UK since the late 1700ā€˜s. Whilst not common, I’m not sure anything should be locked until it’s understood.āœŒļø

reformNotReform · 17/08/2026 23:00

There was an Archbishop, Cosmo Lang

Maddy70 · 17/08/2026 23:22

A friend called their child Cosmo. I thought it was awful at the time tbh but now it really suits him and I think it's lovely

Giraffehaver · 19/08/2026 22:31

My sil had a very grumpy Jack Russell called Cosmo who I absolutely adored so I'm a fan!

SnowFrogJelly · 19/08/2026 22:44

I like it

Calliopespa · 19/08/2026 22:47

FuzzyPuffling · 31/05/2025 14:15

I wanted our cat to be called Cosmo. DH vetoed it. Cat has Cosmo as a middle name.

I love this post! Only on MN do DH's veto cat names, and cats have middle names!

Calliopespa · 19/08/2026 22:48

I think it's fine OP.

It's an old name, so not really one I think of as "cool."

ETA my first thought is always Cosimo di Medici, who, while remarkable in some ways, doesn't really tick the cool box! I think it's just a variant of that isn't it?

Calliopespa · 19/08/2026 22:51

TheBigFactHunt · 03/06/2025 14:10

Screams of desperation and new money.

I really don't think the new money thing is fair. It's a pretty old European name. In fact, Medici money is some of the oldest serious money that has been.

Calliopespa · 19/08/2026 22:52

SnowFrogJelly · 03/06/2025 00:53

Nigella chose it

Wasn't that Cosima? For a daughter?

DogAnxiety · 19/08/2026 23:11

Cosmo is a perfectly solid name although it definitely gives very posh vibes in the UK.

Cosimo, in Italy, sounds a bit different, to my ears you might expect an English equivalent to be something like… Francis, Hugh, Edmund, thst sort of name: uncommon, probably not working class and sort of solid more than anything else.

Personally I’d go with the Italian spelling: Cosimo. Cosmo to me is quite an eccentric name, not bad at all, but it has a very definite vibe of posh and could be hard to carry off depending on social milieu. I have a regular work contact called Cosmo, he is really very pleasant but undeniably quite posh.

Calliopespa · 19/08/2026 23:16

DogAnxiety · 19/08/2026 23:11

Cosmo is a perfectly solid name although it definitely gives very posh vibes in the UK.

Cosimo, in Italy, sounds a bit different, to my ears you might expect an English equivalent to be something like… Francis, Hugh, Edmund, thst sort of name: uncommon, probably not working class and sort of solid more than anything else.

Personally I’d go with the Italian spelling: Cosimo. Cosmo to me is quite an eccentric name, not bad at all, but it has a very definite vibe of posh and could be hard to carry off depending on social milieu. I have a regular work contact called Cosmo, he is really very pleasant but undeniably quite posh.

Edited

I think I agree with you about Cosimo over Cosmo.

It also avoids all the cocktail etc vibes.

That's interesting your take on the different vibe between UK and Italy. I don't know Italy well enough to have understood that but it makes sense.

Redflamingos · 20/08/2026 08:07

Cosmo is a great name - cool, classic and not overused.

People make/become their names, not the other way around.

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