Future sibling names aren’t always top-of-mind when we’re naming a child. But they matter. After all, when we decided to call our daughter Clio, we forever closed the door on another favorite name – Theodore, nickname Theo.
Or did we?
For every family that decides Maya and Milo are too similar, another embraces the sound-alike names.
Or insists that Alicia and Alina are totally different names.
Some parents might never notice that Joanna and Jackson are both related to John.
Or maybe the first time Kelly introduces her daughter Grace, she suddenly realizes that the legendary Grace Kelly is echoed in their names.
Siblings’ names will be said together countless times. The names we like often have much in common.
So how can you tell if your sibling name choices make for a compatible set, or if they’re much too close?
There are no hard-and-fast rules, but here are ten factors to consider. They start mild, maybe-rethink-this kind of considerations. As we reach the top of the list? By #3, it’s best to think long and hard about your choice.
Table of Contents
- 10. The names share the same meaning.
- 9. The names share the same origins.
- 8. You’ve neglected 25 letters of the alphabet.
- 7. The sibling names are (romantically) linked in history or pop culture.
- 6. Your choices can lead to same nickname.
- 5. Your favorite sibling names share the same ending.
- 4. They nest like Russian matryoshka dolls.
- 3. They share the same first syllable.
- 2. The names rhyme.
- 1. A combination of the above.
- So should you choose a different name?
10. The names share the same meaning.
This can be a subtle way to link siblings’ names. Think Lucy and Claire. One means light; the other, clear. Felix and Asher both mean happy.
Sometimes the challenge comes when your family of two ends up a family of four or five or more. Your first two are the nicely paired Hazel and Ivy, but after using Olive and Jade, your choices for #5 narrow to Loden, Fern, and Moss.
It’s not necessarily a problem, but it might feel limiting as your family grows.
9. The names share the same origins.
Name enthusiasts know that Jacob and James are related. A popular combination for twin girls is Isabella and Elizabeth – two forms of the same name, even if it’s not quite like choosing Mary Anne and Marianne.
Origins aside, Jack and Sean make for a compatible pair of brothers’ names. And Charles and Caroline seem different enough to be worn without incident.
Daniel and Danielle, however, probably feel too close. Partially, it’s the shared origin. But the name also check a lot of boxes further up this list.
8. You’ve neglected 25 letters of the alphabet.
Sometimes this is unintentional. You’re naming your sons after their grandfathers – Michael and Matthew. Or you just happen to like the names Josie and Jude.
But let’s say you choose a letter with fewer options.
I remember hearing about a family with four sons – Henry, Heath, Hugo and Hatrick. Are they ice hockey fans, or was Harvey not their style?
And if you’re on the second generation sharing the same initial for sibling names, your options might be very limited.
7. The sibling names are (romantically) linked in history or pop culture.
If the movie was a bust, or we’re talking minor comic book characters, this matters not at all.
(You can safely ignore “But Sami named her twins John and Alice on Days of Our Lives.”)
Some combinations might appeal because of their shared connections. Imagine daughters named for two Jane Austen heroines, as in Emma and Elinor.
Then there’s Gillian Anderson’s threesome – Piper, Oscar, and Felix. Her kids might not know The Odd Couple, and it’s not a negative reference, either – so that’s probably a non-issue.
Some do feel truly unthinkable – siblings named Romeo and Juliet, maybe. The biggest challenge for overly matched sibling names? Probably famous romantic partners. Albert’s sister can’t be Victoria, and if your favorite name for a girl is Bonnie, strike Clyde from your boy’s list forever.
Though, of course, it can happen after the fact – in which case, all you can do is laugh and promise that, no, the Twilight novels didn’t inspire you to name your children Jacob and Bella twenty years ago.
6. Your choices can lead to same nickname.
Sure, you never intend to call Katherine or Kaitlyn by the nickname Katie. But it could easily happen. And how will their sister Annie feel about having an unrelated name?
Not every set of names that shares a nickname feels too close. Amelia and Marianna could both shorten to Mia. Alexander and Natasha might both go by Sasha.
This rule about sibling names mostly applies to the obvious short forms. Bennett and Benjamin, for example.
The harder you have to think about it, the less it becomes a concern.
5. Your favorite sibling names share the same ending.
If you like Isabel, you might also like Annabel.
Ditto names like Parker, Carter, and Harper.
But sharing the same ending is another sign that your favorites might be too close for comfort. In this case, it might not bother your children … but it could make repeating their names together a tongue-twister.
4. They nest like Russian matryoshka dolls.
Does one name fit neatly inside the other? Annika and Julian share an “an” but it isn’t at all obvious.
But Ella and Kellen almost sound like they’re part of the other.
In cases like Anna and Susanna, one sibling’s name is an elaboration of the other.
That can be a little too close for sibling names.
3. They share the same first syllable.
With #10 through #4, it is easy enough to come up with examples that work, despite being close in some ways.
But #3 is tougher to navigate for sibling names.
Imagine sisters named Madeline and Madison? A brother-sister pair called Jordan and Georgia? Twins Miley and Myla?
They’re not impossible, and some cultures prefer sibling names that are as close as possible. But for most families, these feel repetitive.
2. The names rhyme.
Yes, there have surely been twin sisters called Cara and Tara. But most parents – and siblings – would find it a bit too matched.
And yet, this is trickier than it sounds. Timothy and James, Jeffrey and Stephanie and, of course, Benjamin and Jennifer all end up rhyming if you use the most common diminutives.
That means we rule out Emma and Gemma, Hallie and Callie, but also maybe Jonah and Rowan – unless we’re confident they’ll never be called Joe and Row.
1. A combination of the above.
Jackson and Jonathan are close, but probably on the right side of the line. Jack and Sean? Probably fine. Jack and John, though? That inches even closer to the line.
Jeffrey and Stephanie seem less problematic than Benjamin and Jennifer – because the nicknames rhyme and we think of them as a matched pair.
Sarah and Laura are pretty similar as sibling names, but Laura and Maura feel like they cross a line.
So should you choose a different name?
Ultimately, choosing sibling names is completely up to the parents. In most cases, thinking through whether a name is too close is subjective. For everyone who insists that Remy and Romy are way too similar, there’s a family that finds those names exactly right.
This is about testing out your favorites and anticipating problems before you’re holding your newborn in your arms.
What choices have you had to reject because they’re just too close to your an older child’s name?
First published on December 10, 2009, this post was revised and re-published on January 19, 2022 and again on September 7, 2025.
My favourite girls name was Ashlyn, gone forever now because my first-born was a boy and we decided at the last minute to call him Asher. Way too close. The knowledge that we might never have a girl anyway allowed us to use the “Ash” sound for our beautiful son.
I grew up with my mum, dad & two brothers all sharing the same initials. Only my sister & I were unique. The others all used to open each others’ mail. To make it worse, my dad & one of my brothers shared exactly the same name (first, middle, surname), forcing the use of “junior” & “senior”. I think it’s rather archaic to name sons after dad. I actually wouldn’t mind using that name myself, or a variant of it (William – I like Billy), but I feel that my brother Bill has dibs on it if he ever has any kids.
After naming my first two daughters Aeryn and Gillian, I SWORE I would pick a name with a different ending sound for the third.
Somehow, my husband and I settled on Selene.
I know a sibset that is Madison, Morgan (girl), and Matthew. The two girls look a lot a like and I call them by the wrong names all the time! I feel bad because I used to baby-sit them!
At my church we have twins Isabelle and Elizabeth, Evan and Eden, Kylie and Katie! Eeekk.
I agree with Corinne. I call myself an NGU – Name Geeks Unite. So, I do take naming very seriously. As long as the names aren’t specifically the same in sound or overly similar, like Keira and Kara or Kristin and Christine, then go for it. Ella and Elizabeth or Janice and Jeanette are different
Here is the thing , a lot of people don’t get into names and they just names that they like.So, a lot of people don’t have rules. They simple for what they like.Also, using a same letter could be a way to honour family. I think it depends on the family. My sibling , mom and I all have the same initial and it was not intentional at all. Our names truly were just names that she loved. They also have completely different sounds. It has yet to affect me negatively. In a way, it actually feels like we have our own little club together. In saying that, I don’t plan on using the same letter for future children
As long as the names have different sounds, I think the names can be used.
Similar names for siblings are Heaven and Nevaeh. John and Jonathan ( I kid you not)
Names where I might have a problem:Maya and Isla, Dylan and Nolan, Eden and Dylan, Eden, Evangeline and Ember, Amber and Ember (that WOULD be a problem lol), Zane and Thane (prblem).
We’re running into a name problem right now and I hoping the fine readers will share their insights.
Love the name Esme but is it too close to her older sister, Ella?
Do you plan to have more kids? That’s the first question that pops into my head.
I think Ella and Esme are just on the right side of close but not-too-close. And if you later had a son, there are plenty of compatible boy names.
But a third daughter could be tough. Ella, Esme and Anya, maybe. Or Ella, Esme and Eden. But the list is (somewhat) limited. Because Ella, Esme and Molly or Ella, Esme and Sara feels like one of your girls is left out.
No, this is our last child. We have a boy named Owen, then Ella and baby#3 coming any day now. We’ve poured over names but seem to come back to Esme everytime other than questioning if it’s too close to Ella.
Owen, Ella and Esme – they’re close, but not too close – at least IMHO. Would you like me to open it up? I’ve never done it before, but I could certainly post a question – this far after an article is published, I don’t think many readers are checking back.
I come back to mention I know a sibset Harry (Harrison), Maddie (Maddison) & Charlie.
Also my cousin Hannah was born 18months after me and my name is Anna- its not a sibset but its kind of interesting.
My Mum’s sibset is John, Sandra & Jillian.- Two initials the same but John & Jill are quite different sounding.
My siblings and I thought ended in different sounds but my sisters end the same I just realised! We all have our own initial though.
Anna, Katherine, Matthew, Connor & Erin.
Haha, Anna, your family fared far better than mine, lucky thing.
Kellie, Matthew, Kimberley, Jason, Jeannie. Matthew is the odd consonant out and really the best name there.
I have a big soft spot for Jeannie (JEE nee) though. It was my Scottish Great Nan’s name.
Oh I love this topic.
I know two sibsets: Daniel and Danielle, Kyle and Kylene. I could never understand it.
#5 always trips me up. My daughters are Josephine and Genevieve. Evangeline, Clementine, Vivienne are all on the long list for another girl but I doubt I could actually use any of them because of the similarities (-ine endings) and potential overlap of nns (Vivi, Evie). Josiah is another name that I love, but won’t use because of the similarity to Josephine.
I’ve got Isla, Iris, Ivy, and Ian on my shortlist. It doesn’t bother me, I love the names. If people have problems with the fact that I’ve got all these ‘I’ names, they need some help. And this is coming from a name nerd 😉
But Isla, Iris, and Ivy all match, and Ian will be left out in the cold.
As much as I cringe at the trenderrfic and contrived Kyson and Karson, Kayleigh and Kyleigh, Jayden and Jayda sibsets, I’d seriously consider Isla and Ivy or Isla and Isemay (although I don’t like the similarity to Esme). I’m a hypocrite.
I’d also like to throw Blithe in as a middle and as we regularly call our daughter by her first middle, Bonnie, Blithe and Bonnie is as twee and pea-podded as it gets, folks. *slaps own face*
And I have considered Hamish as a middle once already having used James and I know some name enthusiasts like to get out their redundancy whacking clubs for such transgressions.
Yes … but I do think that there are plenty of sibs out there named Elisabeth and Isobel, so James and Hamish in the middle? Not a big deal. And I love Blithe!
I know a family with a little boy and a little girl. Boy is (FIRSTNAME) Oliver. Girl is Olivia (MIDDLE NAME). I don’t really see a problem with it