TL;DR

  • Tease, then mean it: one cheeky line followed by one sincere line is the classic sibling formula.
  • Keep the childhood stories kind: nothing his new in-laws will be shocked by.
  • Welcome his partner: a line to them shows you're gaining a sibling, not losing a brother.
  • Short is completely fine: brothers often appreciate one honest sentence more than a page.
  • Choose the format: card for the sincere bit, toast or guestbook phone for the funny bit.

The best wedding wishes for a brother mix a bit of teasing with a lot of love: remind him where he came from, tell him you’re proud of who he’s become, and welcome the person he’s marrying. Below are 76 original messages from sisters and brothers, sorted by tone: emotional, funny, short, and lines you can use to close a toast.

Swap in real names and details where you see brackets. If you’re also giving a speech, use one message in the card and save a different one for the microphone.

How to choose and personalise your message

Siblings have something no other guest has: decades of shared history. Use it.

  • Pick a lane. Funny, emotional or both. Most sibling messages work best as one joke and one heartfelt line.
  • Use a shared memory. The backyard cricket, the shared bedroom, the road trip where the car broke down. Real details make it yours.
  • Mind the audience. If it’s going in a card the couple will read together, keep the stories partner-friendly. If you’re saying it out loud, remember grandparents are listening.
  • Name his partner. It turns “congrats, bro” into a proper family welcome.

Wedding wishes for your brother from a sister

  1. To my little brother on his wedding day: you’ve grown into a man I’m so proud to call family. Congratulations to you both.
  2. I’ve been bossing you around since we were kids. Today I’m handing that job over to [Partner]. Good luck.
  3. You were my first best friend and my first enemy, usually on the same day. I couldn’t be happier for you.
  4. I always knew you’d find someone special. I just didn’t know they’d be this wonderful. Welcome, [Partner].
  5. Watching you say your vows today, I saw the little boy I used to read to at night and the man you are now. I’m so proud.
  6. You’ve always looked out for me. Now I get to watch someone look out for you. Congratulations, brother.
  7. Thank you for being the best big brother a girl could ask for. [Partner] is very lucky.
  8. I hope your marriage is full of the same loyalty you’ve always shown our family.
  9. My wish for you is a lifetime of laughter, a home full of love and a partner who steals your hoodies like I used to.
  10. Congratulations, little bro. You’ve gone from pulling my hair to pulling off the best day of your life.
  11. You’ve given me so many memories. Today you gave me a new sibling. I love you both.
  12. Whatever comes next, remember I’m always one phone call away. Congratulations, brother.

Wedding wishes for your brother from a brother

  1. Proud of you, mate. You picked a good one, and they picked an alright one too.
  2. Brother, you’ve always had my back. Today I’ve got yours, and so does [Partner]. Congratulations.
  3. We shared a bedroom, a bike and every bad haircut of the nineties. Now you’ve found someone to share everything else with. Proud of you.
  4. Congratulations, bro. I’ll still beat you at FIFA, but you’ve definitely won today.
  5. I’ve looked up to you my whole life. Today you gave me another reason to.
  6. You’re the best man I know, even if I’m the one wearing the best man badge today.
  7. Here’s to my brother and his new partner. You make each other better, and that’s the whole game.
  8. Marriage looks good on you, mate. Congratulations to you both.
  9. I don’t say it enough, so I’ll write it down: I love you, brother, and I’m so happy for you.
  10. From backyard footy to standing at the altar. You’ve come a long way, and I’m proud of every step.
  11. Welcome to married life, bro. Rule one: you’re never winning an argument again. Rule two: you’ll be happier for it.
  12. Congratulations, little brother. You’ve grown into a better man than you had any right to, considering who raised you.

Emotional wedding wishes for your brother

For a card you’ll hand him before the ceremony, or a moment in your speech where the room goes quiet.

  1. Growing up with you was the best part of my childhood. Watching you get married is one of the best parts of my life.
  2. I’ve seen you at your lowest and at your best. Today, you’ve never looked happier. That’s all I’ve ever wanted for you.
  3. Brother, you taught me loyalty without ever saying a word about it. [Partner] is marrying the most loyal man I know.
  4. Whatever life throws at you two, you’ll face it together. And you’ll always have me behind you.
  5. Mum and Dad gave us a lot, but the best thing they gave me was you. Congratulations on your wedding.
  6. Today I’m reminded how lucky I am to call you my brother, and how lucky [Partner] is to call you theirs.
  7. You were the one who taught me to be brave. Today you showed everyone how brave love can be.
  8. I hope you know how proud this whole family is of you. Today just made it official.
  9. May your marriage be as strong as the bond we share, and a lot less noisy.
  10. I’ll never forget seeing your face when [Partner] walked down the aisle. I hope you look at each other like that forever.
  11. Through every season of life, you’ve been my constant. I’m so glad you’ve found yours.
  12. I love you, brother. I don’t say it enough, and today felt like the right day to write it down.

Funny wedding wishes for your brother

Best for close siblings and for opening a toast. Keep it affectionate, and keep any ex-partner jokes well away.

  1. Congratulations on finding someone willing to marry you. We honestly weren’t sure it was possible.
  2. [Partner], thank you for taking him. The family returns policy has officially expired.
  3. Congratulations, bro! Your days of eating cereal for dinner are numbered.
  4. I’m so happy for you. I’m also delighted that someone else has to hear you sing in the shower now.
  5. Brother, remember: “happy wife, happy life” is less a saying and more a survival guide.
  6. Congrats on the wedding! Your room at Mum’s has already been turned into a gym.
  7. [Partner], here’s the manual for my brother: feed him regularly, let him win at board games occasionally, and never touch his fantasy footy team.
  8. You finally found someone who laughs at your jokes. Marry them immediately. Oh wait, you just did.
  9. Congratulations on your wedding! I’ll be expecting a thank-you speech for every time I covered for you in high school.
  10. Welcome to marriage, bro. It’s like being in a group chat that never ends, and you’re not allowed to leave.
  11. Congratulations! You’ve officially been upgraded from “my annoying brother” to “my annoying married brother.”
  12. Today you promised to love, honour and cherish. I’d add: put the toilet seat down.
  13. I always said you’d make a great husband one day. I was lying, but [Partner] proved me wrong. Congratulations!
  14. Marriage advice from your sibling: when in doubt, apologise and bring snacks.
  15. Congratulations to my brother, who has finally learnt to use an iron. Just in time.
  16. Here’s to my brother: proof that miracles really do happen. Love you, congratulations.

Short wedding wishes for your brother

For a text, a gift tag or a quick line beside your photo strip in the guestbook.

  1. Proud of you, brother.
  2. Congrats, bro. You did good.
  3. Best day ever. Love you, brother.
  4. Welcome to married life, mate.
  5. You found your person. So happy for you.
  6. To my brother and my new sibling: cheers!
  7. Always in your corner. Congratulations.
  8. One down, forever to go. Congrats, bro.
  9. Married looks good on you.
  10. Love you both. Have the best day.
  11. Brothers forever, now with backup.
  12. Congratulations, little brother. All grown up.

Messages welcoming his new partner

  1. [Partner], welcome to the family. You’ve been one of us for a while; now it’s official.
  2. I always wanted another sibling on my side. Thank you for marrying my brother, [Partner], so I finally have one.
  3. [Partner], thank you for loving my brother so well. We can all see how happy you make him.
  4. Welcome to a family of loud dinners and long phone calls. We’re so happy to have you, [Partner].
  5. You’ve made my brother the happiest I’ve ever seen him. That makes you family to me, [Partner].
  6. [Partner], if you ever need backup, call me. I know all his weak spots.

Toast closers for a sibling speech

If you’re best man, groomsman or giving a sibling speech, finish with one of these and ask everyone to raise a glass. Our best man speech examples cover the rest of the structure.

  1. So please raise your glasses to my brother and his new [wife/husband], the best team in the room.
  2. To [Name] and [Partner]: may your love be loud, your arguments short and your dance floor full.
  3. To the couple who proved that the right person makes everything better. Cheers!
  4. Please stand and join me in toasting my brother, my new sibling, and a lifetime of happiness for them both.
  5. To [Name] and [Partner]: may you always laugh as much as you did today.
  6. To my brother, my best mate, and the luckiest man here. Cheers!

Adapting your message for a card, a toast or a guestbook

The same wish reads differently depending on where it ends up. Here’s how to make it work in each spot.

Format Length Best type of message
Card 3 to 5 sentences Emotional, with one shared memory
Speech or toast 2 to 4 minutes Funny opener, one story, a welcome line, a toast closer
Audio guestbook 30 to 90 seconds Conversational, cheeky, in your own voice
Photo booth guestbook page 1 to 2 lines Short and playful, reacting to your photo

In a card, go sincere. A message from the emotional section plus one memory is perfect. For more structure, see what to write in a wedding card.

On an audio guestbook, siblings tend to leave the funniest messages, so lean into it. Pick up the handset, wait for the greeting and the beep, and talk to him as you would on a voicemail. There’s no time limit, and the couple receive every recording in an online gallery after the wedding. Have a look at how it works on our audio guestbook page.

A red vintage-style audio guestbook telephone on a marble table in front of a white arched audio guestbook sign

A red audio guestbook phone set up with its instruction sign.

In a photo booth guestbook, stick your strip in and write a line from the short or funny sections beside it. With our handmade guestbooks, the booth prints an extra copy of each strip for the book, so your photo and message sit together.

Two Ghost Booth Events photo strips of a couple labelled Pearl and Paul, mounted inside a ring-bound guestbook beside a handwritten message

Photo strips mounted inside a ring-bound guestbook, with room for messages beside them.

More wedding wishes

If your brother’s wedding is in Melbourne and the couple would love a guestbook or audio phone, send us the details and we’ll check the date.

Wedding wishes for your brother questions

What should I write in my brother's wedding card?

Congratulate him, tell him you're proud of him, mention one shared memory, and welcome his partner by name. A light joke is fine if that's your relationship, but end on something sincere. Three to five sentences is plenty.

Is it okay to be funny in a wedding message to my brother?

Yes, most brothers expect it. Keep jokes about habits, childhood and his cooking, not about exes, money or anything that would embarrass his partner or new in-laws. Follow the joke with one heartfelt line so the message lands.

How do I make my brother cry with a wedding message?

Be specific. Mention a moment only the two of you share, tell him plainly that you love him and that you're proud of him, and say something kind about his partner. Plain, honest words hit harder than poetic ones.

What do you say when toasting your brother at his wedding?

Thank the guests, tell one short story about your brother, say something warm about his partner, and close with a toast such as "To [Name] and [Partner], may you always laugh as much as you did today." Keep it to two to four minutes.