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Baby names

Find baby name inspiration and advice on the Mumsnet Baby Names forum.

Original poster

Sibling name for Benjamin and Alexander

61 replies

Lrb2 · 22/11/2025 23:25

Would appreciate any ideas - thank you 😊

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AliceMaforethought · 23/11/2025 08:54

Sebastian.
Zachary.
Roderick.
Percival.
Reuben.

If the baby is a girl:

Lucy.
Sophie.
Isabella.
Louisa.
Joan.
Juliet.

user1492757084 · 23/11/2025 08:48

Benjamin, Alexander and ..

Victoria
Elizabeth
Jane
Clare
Katharine

Charles
Thomas
James
David
Henry

mumof1littlebun · 23/11/2025 08:30

@CalliopePlantainwhy can’t you have a William with a Benjamin?

YYURYYUCICYYUR4ME · 23/11/2025 08:23

Ptolemy

ErinAoife · 23/11/2025 08:22

OlderGlaswegianLivingInDevon · 22/11/2025 23:27

As above
and Christopher.

Agreed with your choice

Mumofgirls2017 · 23/11/2025 08:17

Benjamin, Alexander and

Theodore
Samuel
Sebastian
Edward
Daniel
Thomas
Oliver
William
Nicholas
Christopher
Joshua
Joseph

Elizabeth
Charlotte
Harriet
Eleanor
Juliet
Francesca
Eloise
Isabelle
Olivia
Emily
Helena
Sophia

RocketNan · 23/11/2025 03:31

David. (Dave)
Philllip (Phil)

mathanxiety · 23/11/2025 03:09

Benjamin, Alexander, and...

Julian
Rufus
Nathaniel
Daniel
Gabriel
Simon
Isaac
Francis
Nicholas

Cecilia
Jessica
Katherine
Leonora
Saskia
Charlotte
Harriet
Lucy
Stella

VioletandMauve · 23/11/2025 03:04

I was pregnant with twins in the days before a scan told the sex. Their names, if boys, were going to be Thomas Benjamin and Alexander James. We thought that was a nice combination.

Couldn’t use them as I had two girls! 😂

Pryceosh1987 · 23/11/2025 03:01

Jonathan.

Alexandrine · 23/11/2025 01:52

Imo another popular, timeless classic to match Benjamin and Alexander would be lovely - and I feel like something a little longer looks/sounds best with his brothers too (so less so names like George or James even though they are timeless classics).

William or Edward would work really well. Perhaps Oliver or Frederick, although their popularity has fluctuated a bit more over time. I also like how you’d then have differing origins too - Hebrew (Benjamin), Greek (Alexander) and Germanic (William, Frederick) or Anglo-Saxon (Edward) or Latin (Oliver), despite them all being matching multi-syllable classics with nice diminutive options.

ETA: You totally can have William with Benjamin - they’d be known as Ben, Alex and Will most of the time surely? I don’t know any William’s under 50 who get Bill (at least in the UK).

And I totally forgot girls too - for me Eleanor in particular or perhaps Charlotte, Emily or Sophie would match the “popular classic” vibes of the brothers.

MinervaMouseHunter · 23/11/2025 01:17

Jonathan.

Ben, Alex and Jon.

User6761 · 23/11/2025 01:16

Matthew
Joseph
Dominic
Thomas
Gregor

Charlotte
Eleanor
Harriet
Joanna
Imogen

kathryn77 · 23/11/2025 01:14

Sebastian

Hillyhillyholly · 23/11/2025 01:12

Matthew
Daniel
Edward

Emma
Catherine
Laura

BoleynMemories13 · 23/11/2025 00:29

First thoughts were Benjamin, Alexander and...

Thomas
James

Charlotte
Elizabeth

Other options that go well:-

Oliver
Matthew
George
Henry
Joseph
Jacob
Daniel
Samuel

Olivia
Emily
Isabelle
Florence
Eleanor
Harriet
Hannah

SnowFrogJelly · 23/11/2025 00:18

Eleanor

SnowFrogJelly · 23/11/2025 00:18

Matthew

Choconuttolata · 23/11/2025 00:01

Christopher
Elliot
Joseph
Luke
Maximilian

Abigail
Bethany
Francesca
Georgia
Jessica
Rebecca

Breadbasketcase · 22/11/2025 23:46

William
Charlotte

QBTheRoundestOfBees · 22/11/2025 23:43

I would go with Robert for a boy.
not sure about a girl - from the names already suggested, I like Eloise
i wondered about Lily or Ellen, Elena, Elisabeth also nice

3hairspastfreckle · 22/11/2025 23:43

Oliver or Annabelle

IndigoIsMyFavouriteColour · 22/11/2025 23:39

Jasper for a boy

Eleanor for a girl.

DramaQueenlady · 22/11/2025 23:37

Jacob

Girls
Mirrin
Sophie
Freya
Dana

CalliopePlantain · 22/11/2025 23:36

You can’t have a William with a Benjamin!

Henry
Lucus
Dominic
Theodore

Harriet
Clementine
Delilah
Samantha