Best man speech for your brother: tips and examples

By the speechwriters.ai editorial team · Last updated 21 October 2026

Writing a best man speech for your brother? How to use a lifetime of material well, include your parents, handle the emotional bit, and example lines to adapt.

Being best man for your brother is different from doing it for a mate. You have more material than anyone else in the room, your parents are listening to every word, and the sincere bit at the end can hit harder than you expect. Here's how to make the most of it.

Too much material: how to choose

You've known him his whole life, so the challenge isn't finding stories – it's cutting them. A useful rule: pick one story from childhood, one from growing up, and one from adult life. That gives the speech a natural shape, from little brother (or big brother) to the man getting married today.

• Childhood: something short and visual that the whole family remembers – the haircut he gave himself, the school play, the obsession with a particular toy.
• Growing up: a teenage or student story that's funny but not humiliating. If it involves police, exes or anything your nan shouldn't hear, choose another.
• Adult life: ideally something that shows the person his partner fell for – loyalty, kindness, the way he turns up for people.

Each story should say something about who he is. If it's only funny to people who were there, it's an in-joke and it doesn't belong.

Use what only a sibling can say

A brother's speech has two advantages. First, you can tease him with real authority: "I've shared a bedroom, a bathroom and a Nintendo with this man, so trust me when I say…". Second, you can speak for the family. A line about what your parents taught you both, or what he means to them, lands in a way a friend's speech can't.

Include your parents (carefully)

Your parents may be hosting, paying or simply very proud. A quick, warm nod works well – "Mum and Dad, thank you for raising him, and for the hours of practice you gave me at winding him up." Avoid stories that embarrass them more than him, and check any family tales with them first.

If a parent has died, a brief, gentle mention near the end is usually welcome: "Dad would have loved today. He'd have been the first on the dance floor and the last to leave." Talk to the couple beforehand so it doesn't clash with anything already planned.

Welcome his partner into the family

This is one of the most meaningful things a brother can do in a best man speech. Say what you've noticed since they met, and say it directly to them: "Priya, we've always wanted a sister – we just didn't expect her to be the sensible one." It turns the speech from a roast of your brother into a celebration of the couple.

The sincere bit

Most best men find the ending harder than the jokes, and brothers more than most. Write it simply, and read it slowly. Example lines to adapt:

• "I've been your brother for 31 years and your best man for one day. It's the best job I've ever had."
• "We fought over everything growing up, but there's no one I'd rather have on my side."
• "I've always looked up to you – and not just because you're taller."
• "Mum always said we'd be friends one day. She was right, as usual."

If you think you might get emotional, that's fine – guests love seeing it. Pause, take a breath and a sip of water, and carry on. Then move into the toast; see how to end a wedding speech.

Younger or older brother?

Younger brother as best man: play on the reversal – "For years he told me what to do. Today, for five minutes, he has to sit there and listen."

Older brother as best man: you can tell stories he was too young to remember, and say what it's been like to watch him grow up.

Length and structure

Stick to 5–7 minutes, around 650–900 words, even though you could talk for an hour. The usual best man structure works perfectly: introduction, thank-yous, stories, the couple, a sincere moment, then the toast. Paste your draft into the speech timer to check the length, and run it through the room check to catch anything risky.

Frequently asked questions

What do you say in a best man speech for your brother?

Introduce yourself as his brother, thank the right people, tell two or three stories from different stages of his life, welcome his partner into the family, say sincerely what he means to you, and toast the couple.

How do I choose stories for my brother's best man speech?

Pick one from childhood, one from growing up and one from adult life, and make sure each shows something about his character. Drop anything involving exes or that only family would understand.

Should I mention my parents in my brother's wedding speech?

Yes, a short, warm mention works well. If a parent has died, a brief and gentle tribute near the end is usually welcome – check with the couple first.

How long should a best man speech for a brother be?

Aim for 5–7 minutes, about 650–900 words. Brothers have more material than anyone, so cutting is the main job.

Related guides

• Best man speech structure: a UK template that works
• Funny best man speech examples (that won't upset Gran)
• Best man speech dos and don'ts
• How to start a wedding speech (with example opening lines)