Sister of the Groom Speech: How to Write a Great One

Standing up to give a sister of the groom speech? You're about to deliver one of the wedding's most special moments.

This is your chance to celebrate your brother, share those perfect childhood stories, and officially welcome your new sister-in-law into the family fold. Whether you're the little sister looking up or the big sister who's always had his back, the goal is the same.

This guide helps you craft a speech that's heartfelt, hilarious, and totally you – the kind that'll have everyone laughing, crying, and remembering why family bonds are everything.

Opening Your Speech: Grabbing Everyone’s Attention

The opening sets the tone for your sister of the groom speech and helps you connect with the audience. Here’s how:

Be Grateful

Start by thanking everyone at the wedding reception, including other family members who have come to join in the fun. For example:

• “It’s great to be here today and share this with all of you on this crazy day. Thanks for coming to [Groom] and [Bride]’s party.”

Introduce Yourself

Mention your connection to the groom:

• “For those who don’t know me, I’m [Your Name], the younger sister of [Groom], who is an awesome brother and now an even more awesome man.”

Start with Humour or a Sweet Story

Humor is a great opener. Share a funny or embarrassing story:

• “Growing up [Groom] was my go-to person for advice and trouble. He was my cookie thief at midnight and my bike-riding teacher. He’s always been the best older brother anyone could ask for. But let’s not forget the time he thought he could pull off a mullet – it was a brave but questionable choice!”

Your Bond: Praise Your Brother

This part of your sister of the groom speech template is about your relationship and who he is as a person.

His Character

Talk about his qualities:

• “From day one, [Groom] has been my protector, my fan, and my best mate. He’s not just my older brother; he’s also my friend and someone I’ve always looked up to.”

A Sweet Story

A nice story adds depth to your sister of the groom speech. Think of a time he helped you out or made you laugh:

• “In college, I had a tough time. [Groom] would call me every night to check-in. That’s the kind of awesome man he is – always putting others first.”

Childhood Memories: A Personal Touch

Adding childhood memories is a great way to make your sister of the groom speech personal and sentimental.

Choose a Relatable Story

Pick a memory that shows his personality:

• “As kids [Groom] loved building forts and going on wild adventures. That’s the same creativity and determination that will make him an amazing partner to his new wife.”

Connect the Memory to Now

Show how those traits apply to today:

• “That sense of adventure led him to [Bride], his biggest adventure yet. I know he’ll approach married life with the same passion and heart.”

Welcome the Bride: New Sister

Your perfect sister of the groom speech should also welcome your new sister-in-law and celebrate her relationship with your brother.

Praise the Bride

Say something nice about her:

• “From the moment I met [Bride] I knew she was amazing. She’s smart, kind and brings out the best in [Groom].”

Their Love Story

Say what makes them a great match:

• “[Groom] and [Bride] together is like two best friends who are in perfect sync. Whether they’re making pancakes or planning their next adventure, their love is beautiful.”

Welcome

Welcome your new sister-in-law:

• “To [Bride], I’m so happy to officially call you my new sister. We’re lucky to have you and I look forward to many more memories.”

Funny Stuff: Humour and Balance

A bit of humor keeps your heartfelt sister of the groom speech interesting.

Funny Groom Moments

Share some lighthearted moments or embarrassing stories about the groom:

• “As the groom’s sister I’ve seen him in all his glory—and his not-so-glory moments, like when he tried to cook spaghetti for the first time and ended up with something that could only be described as soup!”

Groom Speech Jokes

Use some light marriage jokes to balance it out:

• “Marriage is about compromise. For example [Bride] will learn to love [Groom]’s love of football and [Groom] will learn to enjoy Hallmark movies. Right [Bride]?”

Advice: Sharing Your Wisdom

If you’re married or have learned from happy couples, now’s the time to share your advice.

• “Marriage isn’t about being perfect; it’s about finding someone who makes life’s imperfections worth it. [Groom] and [Bride] you’ve already proven you’re perfect for each other.”
• “Always laugh together, forgive quickly, and be each other’s best friend, especially on the tough days.”

Toast: End with a Bang

Wrap up your sister of the groom speech with a wedding toast.

Summarise

Quickly recap:

• “To my brother [Groom] thanks for being my lifelong guardian and friend. To my new sister [Bride] thanks for bringing so much joy into his life.”

End with a Blessing for the Couple

Raise your glass and toast:

• “Here’s to [Groom] and [Bride]—may you have many laughs, love and adventure. Cheers!”

Tips for Writing and Delivering Your Speech

Here’s more help

• Picture the Scene: Imagine yourself speaking confidently at the wedding or rehearsal dinner. This will help calm your nerves.
• Add a Personal Touch: Include something specific about your relationship, like an inside joke or a heartfelt moment. This makes your speech more memorable.
• Talk to the Couple: Address the groom and his new wife during parts of your speech. It’s intimate and keeps the focus on them.
• Be Real: Write from the heart and be yourself. Authenticity trumps formality.
• Feel the Emotion: If you get emotional, it’s okay! Take a deep breath, pause, and carry on. The audience will love you for it.

Managing Nerves and Staying Confident

Public speaking nerves are normal. Use these tips to stay calm:

• Break the Speech Writing Down: Write your speech in sections. Focus on one bit at a time to make the writing less daunting.
• Focus on the Brother’s Wedding Day: Shift your attention from the audience to the couple. Imagine you’re speaking to them.
• Memorise Key Bits: Know the structure of your groom wedding speech template so you feel comfortable delivering it.
• Stay Hydrated: Keep a water bottle nearby to combat dry mouth and take a breath during the speech.
• Smile and Enjoy: Remember, this is a happy occasion. Be grateful for the opportunity to speak on your only sibling’s big day and enjoy the party.

With preparation and sincerity, your sister of the groom speech will be unforgettable. Whether it’s at the rehearsal dinner or the wedding reception your words will make your brother and his new wife feel special and the room will be left smiling and uplifted.