Cousins share a unique bond, growing up as built-in best friends and partners in crime. This Mother’s Day, celebrate your cousin with happy Mothers Day cousin quotes that show just how much you love and appreciate her!

This post provides happy mothers day cousin quotes to use as a card or photo card message, that you can use alone or with any other item as part of a Mother’s Day gift to wish a very happy Mother’s day.
There’s something about cousins, second cousins and all the rest down the line, that just makes life better! They’re not just a family member, they are ready-made friends, partners in crime, and the ones who you can have a special bond and totally understand family gatherings on a different level.
Now add motherhood to the mix, and one of the best things is even more inspiring.
Whether raising little ones, being a rock for older kids, or even taking care of the family dog like a total pro, a great cousin who’s also a mom deserves all the love on Mother’s Day.
When Is Mothers Day?

Mother’s Day in the United States always falls on the second Sunday of May each year.
Slowestuff Mothers Day Section

Slowestuff is a seasonal focused blog, so we love all things Mother’s Day!
This post is focused on dear cousin happy mothers day cousin quotes to put in cards or go with gifts, but we have a lot more ideas for warm wishes, quotes, jokes and gifts for Mother’s Day in our Mother’s Day section of the blog!
In that section, you will find all kinds of seasonal inspiration. Things like Mothers Day gift ideas for gardeners, for book lovers, and for those moms who love to feed the birds! You will also find more quotes for all the moms in your life, like quotes for a brand new mom’s first mothers day.

Why Wish Your Cousin(s) a Happy Mothers Day?
Growing up with cousins is seriously one of the best parts of family.
It’s like having a built-in best friend—someone to share childhood adventures, inside jokes, and maybe even get into a little trouble with. The bond between cousins can be even closer than siblings, and that connection only gets stronger over time.
Now, seeing a favorite cousin step into motherhood? That’s something truly special.
Whether it’s Mother’s Day messages, a heartfelt Mother’s Day card, or just a quick Instagram caption on this important day, taking a moment to celebrate an amazing mom (who also happens to be an incredible cousin) is a wonderful way to celebrate!

Dear Cousin! 25 Happy Mother’s Day Cousin Quotes & Wishes
Sometimes finding the right words is hard, even when you know what you want to say! Here are some life quotes that you can put in a card for your cousin or cousins, or use as inspiration to put your own words.
- “Cousins are the first friends you never had to make. Now, seeing you as a mom makes me so proud—your little ones hit the jackpot!”
- “A cousin is a little bit of childhood that never fades. Watching you as a mom just proves how amazing you’ve always been!”
- “We may have spent our childhood causing trouble together, but now you’re out here raising incredible kids. You’re crushing this mom thing—Happy Mother’s Day, cousin!”
- “Having a cousin like you is already pretty awesome, but seeing you be such a great mom? Next level. Happy Mother’s Day!”
- “Dear cousin, you’ve always been the fun, kind, and loving one—no surprise you’re now the best mom! Hope your Mother’s Day is as amazing as you are!”
- “Cousins are built-in best friends, and now you’re a built-in superhero to your kids. Wishing you a Mother’s Day full of love, laughter, and maybe even a little relaxation!”
- “Seeing you as a mom just makes sense—you’ve always had the biggest heart. Happy Mother’s Day, cousin!”
- “No matter how much time passes, our cousin bond stays strong. Now, your little ones get to experience your love every day. Hope your Mother’s Day is the best!”
- “To my cousin, who somehow makes being an amazing mom look easy—you’re doing such a great job, and I’m so proud of you!”
- “‘The best thing to hold onto in life is each other.’ – Audrey Hepburn – Your kids are so lucky to have you to hold onto. Hope your day is full of love!”
- “You’re the kind of mom every kid dreams of having, but lucky for your little ones, they got you for real. Wishing you a happy, love-filled Mother’s Day!”
- “Motherhood suits you, cousin! Your kids have the best mom, and I couldn’t be happier for them—or prouder of you!”
- “From our cousin adventures to your new mom adventures, you’ve always been someone to look up to. Happy Mother’s Day—you’re killing it!”
- “‘Sometimes being a brother is even better than being a superhero.’ – Marc Brown – The same goes for cousins, and you, dear cousin, are a total hero to your kids!”
- “You’ve always been strong, kind, and full of love—so it’s no surprise you’re an amazing mom. Hope your Mother’s Day is as special as you are!”
- “From getting into trouble together to raising families—who would’ve thought? You’re doing an incredible job, cousin. Happy Mother’s Day!”
- “‘Family means no one gets left behind or forgotten.’ – Lilo & Stitch – Cousin, your little ones are lucky to have you always in their corner!”**
- “Cousin, your kids are growing up with the same love and laughter we had. Hope your Mother’s Day is as beautiful as the family you’ve built!”
- “Some people spend their whole lives searching for a best friend—I was lucky enough to be born with mine. Love seeing you shine as a mom!”
- “‘It takes someone really brave to be a mother.’ – Elizabeth Gilbert – And cousin, you are one of the bravest I know. Hope you have the best Mother’s Day!”
- “Growing up, we were like built-in best friends. Now, your little ones get the best mom and the best role model!”
- “Cousins by blood, best friends by choice, and now an incredible mother by heart. Happy Mother’s Day—you are truly one of a kind!”
- “We laughed, we got into trouble, we made memories—and now you’re making even better ones with your kids. Hope your Mother’s Day is amazing!”
- “Cousin, you’ve got the love, patience, and strength every great mom needs. Wishing you a Mother’s Day full of all the happiness you bring to others!”
- “You’ve always been the coolest growing up, Cuz, and now you’re the best mom too. I’m so proud of you and the amazing job you’re doing—Happy Mother’s Day!”
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Gift Ideas for Mother’s Day
If you want to go the extra mile, a sweet gift is another great way to show appreciation.
To all the cousins out there who you have fond childhood memories with, and are now absolutely rocking motherhood, it’s a day for love, appreciation, and maybe even a little time to relax. These gifts will help your cousin do exactly that!
Pampering Gift Box
Loving mothers will love a pampering gift box! We know being a mom means lots of love but it is also hard work. Give her this so that she can really pamper herself on a job well done!
Candles
It’s a classic for a reason!
Coffee!
The great thing about a coffee themed gift, if your cousin is also a coffee lover, is that it can be so personalized to fit their vibe.
Love earthy things? Give a little crochet keepsake with her favorite latte. Love iced coffee? Give a little personalized glass. Coffee always gets cold? Get a mug warmer (also perfect as a candle warmer!). Or does she love unique and pretty things? Get this amazing glass that you can have personalized too!

Dear Cousin! 25 Happy Mother’s Day Cousin Quotes & Wishes
The best cousin growing up, with whom you have countless memories, has now become the best mom, and that’s worth celebrating in a big way! Fit your good wishes in whatever way works best for the relationship you have with your cousin.
If that means it’s funny quotes, heartfelt wishes, or a throwback cousin picture, showing some love on this special day is always a great way to make someone feel appreciated.
After all, cousins make life more fun, and seeing one become an amazing mother is just another reason to celebrate!
Mother’s Day Inspiration
If you are looking for more ideas, we have Mother’s Day gift inspiration on our Mother’s Day section of the blog, including ideas for the book lovers, the bird lovers and the gardeners that might be perfect for the new mom in your life. Also, look to our gift posts for her, including the best gifts under $50 and gifts that will make her swoon. You can easily shop for all these things on our storefront.
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Happy Mother’s Day to all the moms out there!
Slowestuff
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