Wedding Tips
Gina Balic

Gina Balic

Event & Wedding Specialist

75+ Wedding Wishes for Your Sister: Heartfelt, Funny & Unique Messages

Finding the right words for your sister's wedding isn't easy—especially when you want to put all your love, pride and nostalgia onto a single card. Discover heartfelt, funny and unique wedding wishes that perfectly capture your bond.

Two sisters in white dresses holding flower bouquets in a field of lupines

At GB Events, we know how much family moments mean. If you’re stuck on what to write in a card, speech or text for your sister on her big day, we’ve put together this huge list of wedding wishes and messages. Feel free to use these exactly as they are, or tweak them for your own style. Whatever you do, just make sure it comes from the heart!

The relationship between sisters is unique—filled with childhood memories, shared secrets, and an unbreakable bond that only grows stronger with time. Your sister’s wedding day is a celebration not just of her new beginning, but of the journey you’ve shared together. From playing dress-up as kids to watching her walk down the aisle, this moment deserves words that capture the depth of your relationship and the joy you feel for her happiness.

Congratulatory Wedding Wishes for Your Sister

These heartfelt messages celebrate your sister’s new chapter while acknowledging the special bond you share:

Congrats on finding your happily ever after, sis! Wishing you both a lifetime of laughs, adventures and good coffee.

So thrilled to see you marry your best friend. Here’s to a beautiful life together!

Wishing you both the kind of love that only grows stronger with every year.

May your marriage be filled with Sunday morning sleep-ins, spontaneous road trips and endless inside jokes.

Congratulations, little sis! You’ve always had a heart of gold and now you’ve found someone who treasures it.

Here’s to your next chapter. May it be filled with joy, growth and maybe the odd cheeky wine.

May you never stop dancing in the kitchen together.

You make a stunning bride and an even better sister. So proud of you!

To my sister and her new partner: may today be the start of your best adventure yet.

Congrats! You deserve all the happiness in the world—and then some.

Wishing you both laughter, love and lots of memories (and hopefully no family group chat drama!).

May your new home together be full of love, light and maybe the odd sock left on the floor.

Congratulations on tying the knot! Here’s to love, loyalty and endless pizza nights.

Emotional Wedding Wishes for Your Sister

These deeper messages express the profound love and pride you feel watching your sister begin her married life:

Seeing you walk down the aisle is a memory I’ll never forget. Wishing you all the love in the world, today and always.

I’m so proud to call you my sister—and even prouder to see you marry the love of your life.

May your marriage be as beautiful as your heart, sis.

I can’t believe my partner-in-crime is getting hitched! Wishing you a lifetime of happiness.

From our childhood games to this magical day—couldn’t imagine life without you. Love you always.

Tears of happiness for you today, sis. You’ve found your person.

May every day together be filled with laughter, understanding and little acts of love.

No matter where life takes you both, know you’ll always have my love and support.

It’s a privilege to stand by your side as you begin this new chapter.

Here’s to all your dreams coming true, one by one, together.

You’ve always been my hero. Now, you’re someone’s everything. So much love to you both.

Wedding Wishes for a Sister and Her New Spouse

These messages welcome your new family member while celebrating the couple:

Welcome to the family! Couldn’t ask for a better brother/sister-in-law.

Wishing you both a lifetime of Netflix binges, lazy Sundays and growing old together.

May your marriage be filled with adventures big and small—and plenty of arguments about who left the kettle on.

Two amazing people, one awesome partnership. Congrats!

Your love for each other is inspiring. Wishing you every happiness as husband and wife.

May your journey together be filled with friendship, patience and heaps of laughter.

Here’s to years of happy memories, beautiful moments and unconditional support.

Congratulations to a truly perfect pair—may your love story be better than any rom-com!

To my sister and her soulmate: may you always find reasons to smile together.

So happy to celebrate with you both on this special day. Wishing you a future full of love.

Funny Wedding Wishes for Your Sister

Add some humour to your wedding message with these light-hearted wishes:

Congrats on getting hitched! Good luck putting up with each other’s bad habits forever.

May your life together be filled with love—and absolutely no arguments about the thermostat.

From now on, you’ll never have to pretend to like each other’s cooking. It’s official!

Marriage: when dating goes pro. You’ve got this!

May your love outlast your WiFi passwords and streaming subscriptions.

Just remember, sis—happy wife, happy life.

Hope your marriage is as strong as your coffee.

Now you can officially blame someone else when you’re late to family dinners.

Cheers to finding your lobster, your penguin, your person.

Congrats! You’ve finally found someone who’ll put up with you forever.

Sentimental Messages: Example Letter to Your Sister

Sometimes a longer, more personal message is what’s needed. Here’s a template you can customise:

Dear [Sister’s Name],

From fairy bread at birthday parties to sneaking out for midnight chats, you’ve always been my favourite person in the world. Today, watching you marry the love of your life, my heart is overflowing with pride and happiness.

I hope your marriage is filled with the same warmth, laughter and support you’ve always given me. No matter what, I’ll always be here for you—cheering you on, holding your hand, and (let’s be real) sending you funny memes.

Congratulations, beautiful. Love you forever.

With all my love, [Your Name]

Example Poem: For Your Sister’s Wedding

Poetry can add a special touch to your wedding wishes:

To My Sister on Her Wedding Day

From tea parties and cubby houses, To grown-up dreams come true, I’ve watched you find your happiness— I’m so proud of you.

May your life be filled with laughter, Adventure, love and light, With memories made together, Every day and night.

Wedding Wishes From a Brother to His Sister

Brothers have their own special way of expressing love and pride:

I’ve always been your big/little brother—and now you’ve got a partner for life. Wishing you both the world.

Thanks for making me your ‘best man’ long before today. So happy for you, sis.

It’s been a privilege to watch you grow up. Now I get to see you build a life with someone who adores you.

To my partner-in-crime: may your new partner be as good at covering for you as I was.

Congrats, sis. If he/she ever gives you trouble, you know who to call.

Wedding Wishes From One Sister to Another

The sister-to-sister bond is uniquely special:

You were my first friend and my forever bestie. Couldn’t be happier for you!

Thanks for always being my shoulder to cry on and my partner in silliness. Here’s to a love as strong as our bond.

May your marriage be filled with all the happiness you’ve given me through the years.

Watching you walk down the aisle is something I’ll never forget. Love you to bits!

To the sister who taught me everything: I hope you have the most beautiful married life.

Wedding Wishes for a New Sister-in-Law

Welcoming your new family member with warmth:

Welcome to the family! Couldn’t imagine a better match for my sibling.

You’re officially stuck with us now—good luck!

So glad to call you my sister-in-law. Wishing you a lifetime of happiness together.

It’s not every day you gain a new family member and a friend. Cheers to you!

Wishing you a marriage filled with joy, laughter and lots of shared snacks.

Short & Sweet Wedding Messages

Perfect for when you want to keep it simple but meaningful:

Love you both to bits—congrats!

Wishing you every happiness.

Cheers to love, laughter and happily ever after.

Here’s to your next big adventure together!

May today be the beginning of forever.

Aussie-Style Wedding Wishes

Add some local flavour to your wedding wishes:

Hope your wedding is as beautiful as a Melbourne sunset.

Wishing you all the best as you start this wild ride together.

May your love survive footy season and Sunday arvos at the pub.

Congrats from the bottom of my heart—and from all of us at GB Events, Melbourne!

Extra Unique Wedding Wishes For Your Sister

For when you want something truly special:

May you both keep falling for each other, every single day.

Your love story is just getting started—can’t wait to see what’s next.

May your home always be filled with laughter and love.

Hope you never run out of things to talk about (or things to binge-watch!).

Here’s to a lifetime of finishing each other’s sentences—and ice creams.

May you always make time for each other, no matter how busy life gets.

Wishing you both a life filled with moments that take your breath away.

Hope your marriage is as strong as your coffee and as sweet as your wedding cake.

Never stop surprising each other. That’s what keeps things interesting!

From the bottom of my heart, I wish you nothing but happiness.

For Every Kind of Sister Bond

Whether you’re super close or just reconnecting, your sister’s wedding is the perfect time to let her know how much she means to you. Pick a message from above, or mash a few together and make it your own. At the end of the day, a heartfelt message is the best gift you can give.

Your sister’s wedding day is a celebration of love, commitment, and new beginnings. The words you choose to share with her will become part of her treasured memories from this special day. Whether you opt for something funny that will make her laugh, sentimental that will bring tears to her eyes, or simply heartfelt that expresses your genuine feelings, the most important thing is that your message comes from the heart.

Remember, the best wedding wishes are those that reflect your unique relationship with your sister. Don’t be afraid to add personal touches, inside jokes, or references to shared memories that only the two of you will understand. These personal elements are what transform a generic message into something truly meaningful.

Congratulations from all of us at GB Events, Melbourne—wishing your family a magical celebration and a lifetime of love ahead.

Creating the Perfect Wedding Experience

Your sister’s wedding day deserves to be captured in all its beauty and emotion. Consider adding special touches that will help preserve these precious memories forever. From photo booths that capture candid moments of joy to custom signage that reflects her personal style, the right details can make her celebration even more memorable.

A personalised guestbook or audio guestbook can complement your heartfelt written message, giving all the guests a chance to share their love and well-wishes in a format that your sister can treasure for years to come.

Need help planning your dream Melbourne wedding? Talk to the team at GB Events for a celebration as unforgettable as your sister’s big day.