She’s your sister. You’ve seen her at her worst—bad haircuts, worse boyfriends, that phase she doesn’t like to talk about. And somehow she found someone who looked at all of that and said “yes, I want in.”
Now it’s their anniversary and you need words.
Not Hallmark words.
Words that sound like they came from someone who’s known her since she was stealing your clothes and blaming it on the dog.
Whether you want something sweet, something funny, or something that walks the line between “I love you” and “I still can’t believe someone married you,” we’ve got wedding anniversary wishes for sister that actually sound like a sibling wrote them.
Anniversary Wishes for Sister
Warm, versatile wishes that work for any anniversary year. These hit the sweet spot between heartfelt and not-too-cheesy.
- Happy anniversary, sis! So glad you found someone who loves you as much as you deserve.
- Watching you build a life with your person has been one of my favorite things.
- Happy anniversary to my sister and the one who was brave enough to join this family.
- You deserve all the happiness in the world—and it looks like you found it.
- To my sister on her anniversary: still so happy you found your person. Love you both!
- Happy anniversary! Your love story is one of my favorites to watch unfold.
- Seeing you this happy makes me happy. Congrats on another year!
- Happy anniversary, sis. You picked a good one—and so did they.
- Another year of love for my favorite sister. (Okay, my only sister. But still my favorite.)
- Happy anniversary! Thanks for showing me what finding your person looks like.
1st Anniversary Wishes for Sister
Her first year of marriage. She survived the post-wedding chaos, figured out how to merge two lives, and she’s still glowing. That’s worth celebrating.
Looking for a gift too? The traditional first anniversary gift is paper—and there are some creative paper anniversary gift ideas that go way beyond a card.
- Happy 1st anniversary, sis! One year down, forever to go. So happy for you both.
- You made it through year one! And you still seem to like each other. That’s a win.
- One year of marriage looks good on you, sis. Happy anniversary!
- Happy first anniversary! I knew you two were the real deal—year one just proved it.
- To my sister on her first anniversary: this is just the beginning. Can’t wait to watch your story unfold.
- One year married and still disgustingly happy. Love that for you. Happy anniversary!
- Happy 1st anniversary! Thanks for giving me a brother/sister-in-law I actually like.
- One year ago you said “I do.” Still one of the best days I’ve ever witnessed.
- Happy anniversary, sis! Year one is in the books—here’s to all the chapters ahead.
- A whole year of marriage! You’re officially past the newlywed phase. Just kidding—you still look like newlyweds.
8th Wedding Anniversary Wishes for Sister
Eight years of marriage. Not a “headline” anniversary, but eight years of showing up for each other is worth every bit of celebration.
The traditional eighth anniversary gift is bronze—strong and beautiful with age. Here are some bronze anniversary gift ideas if you’re looking.
- Eight years of marriage, sis! You two just keep getting stronger.
- Happy 8th anniversary! Eight years of love, and you’re still going strong.
- To my sister on eight years: not a “big” milestone, but eight years of love is always big.
- Happy anniversary! Eight years of building something beautiful together.
- Eight years married and still each other’s favorite person. That’s the dream.
- Happy 8th anniversary, sis! Eight years looks really good on you two.
- To eight years of choosing each other, every single day. Proud of you both!
- Happy anniversary! Eight years of love, laughter, and figuring it out together.
- Eight years in and you’re still that annoyingly cute couple. Happy anniversary!
- Happy 8th anniversary to my sister and her person. Here’s to eight more—and then eight more after that.
10th Wedding Anniversary Wishes for Sister
A decade. Ten years of marriage. Your sister has officially built something that lasts.
The traditional tenth anniversary gift is tin or aluminum—flexible and enduring. Here are some tin anniversary gift ideas worth considering.
- Ten years, sis! A whole decade of love. You two are incredible.
- Happy 10th anniversary! Double digits! That’s a real milestone.
- Ten years of marriage and you’re still each other’s person. Love to see it.
- Happy anniversary to my sister on ten years! You’ve built something beautiful.
- A decade of marriage. That’s not luck—that’s love, every single day.
- Happy 10th anniversary, sis! Ten years of love looks really good on you.
- To my sister on ten years: you make marriage look like the gift it is.
- Ten years married! I’ve been proud of you for every single one.
- Happy anniversary! Ten years of choosing each other—here’s to ten more.
- A decade of love. You two are proof that real love lasts. Happy 10th anniversary!
Anniversary Wishes for Brother and Sister in Law
When you’re celebrating both of them—your sibling and the person who joined your family. These acknowledge both halves of the couple.
Looking for a gift for her? Check out our gifts for your sister-in-law guide for ideas she’ll actually love.
- Happy anniversary to my brother and sister-in-law! So glad you two found each other.
- To my favorite couple: another year of love, another year of making family gatherings better.
- Happy anniversary! You two make a great team—and an even better couple.
- Watching you two together is like watching two people who just get it. Happy anniversary!
- Happy anniversary to my brother and the woman who makes him a better person. (Thanks for that, by the way.)
- Another year of marriage for you two—another year of me being grateful you found each other.
- Happy anniversary! You two balance each other perfectly. It’s kind of annoying, actually.
- To my brother and sister-in-law: your love makes our whole family better. Happy anniversary!
- Happy anniversary to the couple that proves love is real—even when my brother is involved.
- Another year together! You two are still my favorite love story in this family. Happy anniversary!
Funny Anniversary Wishes for Sister
For the sister who’d rather laugh than get sentimental. These are warm but not too serious—just like your relationship probably is.
Want more where this came from? Check out our full collection of funny anniversary wishes for every relationship. And if she’d appreciate a gift that matches her sense of humor, here are some funny gag gift ideas.
- Happy anniversary, sis! Congrats on another year of putting up with each other.
- Another year married! That’s another year of someone knowing where you are at all times. Romantic!
- Happy anniversary to my sister and her spouse! Still can’t believe someone willingly joined this family.
- Marriage looks exhausting, but you two make it look almost fun. Happy anniversary!
- Happy anniversary, sis! Thanks for finding someone who handles your “quirks” so I don’t have to.
- Another year of marriage! Another year of your spouse pretending your family is normal.
- Happy anniversary to my sister—proof that even the most annoying little/big sister can find love.
- Congrats on another year together! May your love be stronger than your WiFi signal.
- Happy anniversary! Still impressed someone looked at our family and said “yes, I’ll join that.”
- To my sister on her anniversary: still rooting for you two. Mostly because I like your spouse.
Make It Personal
The best anniversary wish for your sister is the one that sounds like it came from you. Add a memory, an inside joke, something only siblings would understand.
She’ll know the difference. She’s your sister.
Happy anniversary to her—and to the one she chose.
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