Turning 21 is kind of a big deal. As the old saying goes- "21= key to the door" - turning 21 is like stepping into adulthood. Whether you're looking for sentimental, sweet and thoughtful 21st birthday messages for your son, daughter or grandchild, or maybe you need something funny or rude for your bestie's 21st birthday, we've got you covered.
Feel free to use these messages, change them up and make them your own, or take them as they are, we won't tell anyone you had help 😘
And if you need a gorgeous, unique 21st birthday card, take a look at our laser cut collection here. We can even print one of these messages inside your card, just let us know what you'd like inside when you place your order.
21st Birthday Messages for Daughters
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Watching you grow into a strong, independent young woman has been the joy of my life. I’m beyond proud of you. Happy Birthday my amazing daughter
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A 21st birthday is an extraordinary and significant milestone in anybody’s life, especially when it’s the celebration of such a wonderful girl like you. Happy birthday.
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Happy 21st! You're officially an adult, but you'll always be the little girl who made my heart full of love and pride.
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Happy 21st, you make us proud every day, now go and celebrate!
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We can’t believe you’re 21 now. It’s the best time of your life to create special memories so go out and have fun. Happy 21st birthday!
21st Birthday Messages for Sons
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Happy 21st! Your journey has been a joy to watch, and I can't wait to see the wonderful path life takes you on next.
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You make us so proud each and every single day. Happy 21st birthday – we love you so much
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Happy birthday – the bank of mum and dad is officially closing its doors!
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I can’t believe the little baby I held in my arms is turning 21 today. I know you’re going to achieve amazing things in your twenties. I'm so proud of you.
Inspirational 21st Birthday Message Ideas
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21 is just the beginning of an amazing journey. May this year open doors to new adventures
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Let’s celebrate 21 years of amazing memories with many more to come. Happy birthday to one of my favourite people!
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Keep being amazing as you go through your 20s, happy birthday.
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Happy birthday, keep being your amazing, brilliant self and 21 will be your year!
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Wishing you a birthday filled with love and laughter, happy 21st birthday.
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Your journey into adulthood has just begun and I’m excited to see what your future holds.
- Don’t look back and count the years. Live in the present and count all the birthdays ahead of you!
Short 21st Birthday Messages
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The world is yours to explore.
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Happy 21st Birthday, welcome to adulting!
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Let the good times roll and the adventures unfold.
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Hope your birthday is twenty-one-derful!
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I hope your day is incredible. Happy 21st!
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21 trips around the sun- woohoo!
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Out of all the 21-year-olds I’ve ever known, you’re my favourite!
Funny 21st Birthday Messages
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Happy 21st, let’s celebrate with dreadful headaches in the morning!
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Happy 21st birthday! Remember, after today, you have to pay for your own drinks
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You’re officially 21. It’s the end of your youth. And it’s too late to regret it. Happy Adulting!
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Now you're legal everywhere; the world is your playground!
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Halfway to 42. Isn't that a downer?
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You're finally 21... and legally able to do everything you've been doing since you were 16.
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At 21, you're like a fine wine – more expensive, a little bubbly, and best enjoyed with friends.
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Happy 21st! You've unlocked the 'Adulting' level, but it's okay to save that for later.
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On your 21st birthday, remember to drink sensibly – don’t spill any of it.
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Being an adult is great, they said. Don’t worry! I believed the lie, too
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Happy 21st birthday! Enjoy tonight because adulting starts tomorrow.
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