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Baby names

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

Original poster

Brother for Theodore (Theo) and Arthur

34 replies

ThisOpalUser · 23/02/2026 12:12

Hello having 3rd boy and struggling to think of a name. Any suggestions for names that would go well with siblings Theo (birth certificate Theodore) and Arthur.

We’re not bothered about popularity. Theo and Arthur are two of the most popular boy names yet we rarely come across them in real life. I think because there is such a wide range of names nowadays

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Knittedanimal · 28/02/2026 15:40

Peter

HugoThatway · 28/02/2026 15:39

Of course. There's a book that was written outside the UK about 5 little girls - 4 sisters and the girl next door. It's called Little Women.

Romeo and Juliet had the world's first female friar.

There's Ms Fishburne who was in The Matrix.

Lollylavender · 28/02/2026 14:53

ThisOpalUser · 28/02/2026 10:16

Thank you all for your suggestions - some lovely names there. Think we might be going with Laurence nn Laurie

Be aware that Laurence is the feminine version of Laurent.

So a feminine name outside the UK.

Original poster
ThisOpalUser · 28/02/2026 10:16

Thank you all for your suggestions - some lovely names there. Think we might be going with Laurence nn Laurie

OP posts:
Sparklinggreen · 25/02/2026 11:57

Henry
William
Oscar
Sebastian

also depends on last name

Fridgetapas · 25/02/2026 11:52

Theodore, Arthur and…

Zachary (Zach)
Benjamin
Caleb
Joseph

traveltraveltravel78 · 25/02/2026 08:41

Alexander, Sebastian, Nathaniel, Lucas, George, Tobias, Soren, Fredrick, Gideon, Grayson, Parker, Cooper, Rufus, Rupert, Eddison, Emlyn, Iestyn, Rhys, Hector, Horacio, Hugo, Lewis, David, Tatum, Finley, Edmond, Emmett, Samual, Christian, Jasper, Felix, Matthew, Daniel, Samson, Aidan

Firebird83 · 24/02/2026 21:20

Theodore, Arthur and…

Samuel
Hector
Benjamin
Casper/Caspar
Robin
Hugh
Frederick
Peter
Henry
Joseph
Rowan
Jude
Raphael
Jesse
Laurence/Laurie
Otis
Rupert
James
Maxwell/Maximilian/Max
Magnus
Jasper
Fellx
Solomon/Sol
Ralph
Finn
Hugo
Miles
Edmund
Louis
Milo
Nathaniel
Wilfred
Nicholas
Walter

timoteigirl · 24/02/2026 07:33

Voting Frederick.

muddyford · 23/02/2026 17:14

Edwin or Edmund.
Friend's son-in-law is Alaric.

Londonmummy66 · 23/02/2026 17:09

Frederick, Julian, Crispin or Sebastian

Advocodo · 23/02/2026 16:59

Sebastian ‘Sebi’ for short. Love Theo and Arthur ‘Art’ short as in Art Garfunkel.

Advocodo · 23/02/2026 16:56

I love Gabriel ‘Gabe’ for short.

Lollylavender · 23/02/2026 16:45

Theo, Arthur &

George
Quentin
Frederick
Leonard

Dee51121 · 23/02/2026 15:47

I'd be tempted to go Frederick (Freddie) as that shares the 'r' with your other names and popularity wise Freddie is on par with them too.

Others that would fit: Oliver, George, Oscar, Henry.

LivingTheDreamish · 23/02/2026 15:35

John

gillybombilly · 23/02/2026 13:55

ThisOpalUser · 23/02/2026 12:12

Hello having 3rd boy and struggling to think of a name. Any suggestions for names that would go well with siblings Theo (birth certificate Theodore) and Arthur.

We’re not bothered about popularity. Theo and Arthur are two of the most popular boy names yet we rarely come across them in real life. I think because there is such a wide range of names nowadays

Caleb
Isaac
Elijah
Gabriel
Henry

ItalianChineseIndianMexican · 23/02/2026 13:52

Henry was the first to spring to mind.

Mumofgirls2017 · 23/02/2026 13:31

Theodore, Arthur and

Vincent
Oscar
George
Henry
Louis
Wilfred
Jasper
Felix
Frederick
Stanley
Rowan
Rupert
Leonard
Hugo

LoudPlumDog · 23/02/2026 13:01

Theodore, Arthur and :

Frederick
Jeremy
Elias
Vincent
Christian
Benjamin

daysofpearlyspencer · 23/02/2026 12:42

Miles
Bartholomew (Bart)

neversaynevereverforever · 23/02/2026 12:42

Laurence/Laurie
Sebastian

HugoThatway · 23/02/2026 12:41

Seth

EmeraldDreams73 · 23/02/2026 12:34

Henry
Jack
Harry
William
Felix
Archie

Glittergargoyle · 23/02/2026 12:32

Elliot
Lucas
Jack
Henry