Three amazing sisters

Technically, the two married ones would be matrons of honor and the 15 year old would be a maid of honor. You can absolutely have all 3 be given that position if you want. It's your wedding! If you are having multiple people in the bridal party, it should be fine (it may be awkward if you had 3 MOH and 1 bridesmaid or something).

I think it'd be nice to have all three as MOH

I would just skip having a MOH all together, but having 3 is an option as well.

You can definitely have all three hold the honor. I have no sister, but couldn't possibly choose between my two best friends so they're both my Matron of Honor, and my FH didn't want to choose between his two brothers so they are both the Best Man. You don't have to follow a tradition here!

15 is too young to be MOH and have that responsibility. Ask your other 2 sisters and have 2 MOH

You could have more than one MOH if you wanted to! My friend just got married & had 3 MOHs (her 3 sisters). They made a pact when they were younger to always be each others' MOHs. It worked out fine!

Thanks everyone for your input!! This really helps!

I’m having two MOHs but I seriously considered having none. I don’t think it’s a big deal if you want to have all three, but no MOH is also a good option if you want everyone to feel equally honored.

I would have all 3 as MOHs! It's very common

View Quoted Comment Not necessarily. She could still help plan a bridal shower or bachelorette party (assuming its age inclusive). Yeah she may not have the funds to contribute but she can still help other ways.

OP, just have all 3 of them take the roles. The 2 married would be Matrons of Honor and little sis Maid of Honor. It wouldnt make a difference especially if you're having 4 or 5 other bms.
If you were only having 1 other BM I'd say just keep them all BM level as to not hurt feelings.

I don't think there is a right or wrong way--whatever your gut says!

Lucky you that you have three great sisters who you are close to

There is definitely no right or wrong way to go here. I couldn't decide between my two best friends, so I asked them both to be MOH. I don't see anything wrong with asking all three.

First of all, congrats on your engagement! Second of all, stop stressing over little things, or you will have a rough time wedding planning. If you want all of your sisters to be your Matrons/Maid of Honor, then have them be that. You don't ask them based off what they can do for you, so their availability etc. isn't important....you ask them because of how close they are to you. It sounds like you are close to all 3 of your sisters, so giving them all the honor sounds like the most logical choice, IMO.

I would ask all of them to be the maid of honor or none. I have three sisters as well and a cousin and a four really great friends. I couldn't ask one of them so I don't have a maide or matron of honor I asked then all to stand up with me they all said yes. One sister has helped with invitations, two friends went to look at dresses with me, sisters and friends are helping cook and set up, two friends offered to throw me a shower. It prevents hurt feelings and the like by just giving everyone one the same title.

You may have 2 matrons of honor, the married sisters, and one maid of honor, the unmarried sister. It is up to you, does not matter to or involve anyone else. A MOH is usually y
The one or ones you are closest to, or have known for longer. But they are all close, and you have known each other since birth ( or the younger one), so do not try to designate any as BM if you want all MOH. MOH does not necessarily do any more. It depends on who has time, money, and an interest in volunteering to help out, or plan a shower or bach .

I have 4 sisters, and 35 first cousin women within 5 years of my age , living nearby. I had 3 friends and my Godmother as BP. Avoiding issues that would have put one family member in possible conflict with another. It was a wise choice. Do what keeps a peaceable kingdom .

This is all great advice - thanks so much for everyone's input. I think I will ask all 3 of them, as my huge extended family and all my friends know we are close, so it will make sense to everyone. None of them would ever EXPRESS that they were upset or cause a problem if I only chose one of them, but I would never want to risk them feeling that way. I'm not worried about the youngest only being 15 as I am not assigning them any responsibility - I just want them to stand with me and be moral support day-of, and to look gorgeous like they always do

Lots of people include multiple sisters and call them co-maids of honor.

I ended up picking my best friend since I couldn’t decide between my three sisters either!