29 Baby Boy Christmas Outfit Ideas [Boys & Girls]

Jingle bells are ringing, the air smells like sugar plums, and red suits are in – that’s right, it’s Christmas time! Moms always have a list for the Christmas Season, and we’re always checking it twice. Toys – check. Cookies – check. Christmas outfits…oh yes! Shopping for the perfect holiday outfit for your baby boy is half the fun of the Christmas season. Explore these practical, fun, and oh-so-jolly outfit ideas for your little man. 

Spirited Seasonal Outfits For Baby Boys 0-3 Months Old

1.Reindeer in Plaid

Nothing says “Merry Christmas” like reindeers and buffalo check plaid. And low and behold, this outfit has both! This super-cute onesie has button-up legs and roll-up friendly sleeves. The warm and cozy onesie is sure to keep your little man comfortable the whole holiday season! Plus, the glittery text doesn’t come off in the washer – and what mom wouldn’t love that? 

2.Snowman Snuggles

Snowflakes and mittens are all part of the Christmas experience! Dress your baby boy up as a tiny Frosty in this sweet snowman set from Amazon. The snowman’s little smile and carrot nose will warm any heart during the holiday season. This hand-knitted scarf and hat work great for newborn pictures or paired with a coat or snowsuit for added warmth and charm! 

3.Crocheted Santa Clause Photo Set

If you’re looking for a Christmas newborn photoshoot outfit, this is it. Let your little boy be Santa for a day as you announce his arrival to the world. This crocheted Santa Clause set comes with a mini-Santa hat, complete with pom pom, a slide-on diaper cover with Santa’s trademark belt, and a pair of black booties that are too cute for words! This outfit has HEIRLOOM written all over it. 

4.New Elf On the Block

Is your baby boy ready to be Santa’s little helper? Then suit him up in this sweet little elf outfit. This outfit has a jolly green hat and an emerald green onesie with red accents and printed jingle bells for the newest elf at the North Pole to wear. Soft fleece will keep your son comfy on his first Christmas lights tour, and the built-in footsies will keep even his toes cozy! The button-snap legs help moms and dads change diapers in a flash, too. 

5.Milk and Cookies Pajamas

What does Santa love more than Christmas? Nothing, but cookies are probably a close second. So you’ll love that this cookie-inspired Amazon exclusive comes with two warm sets of footed pajamas, both of which feature zippers for easy dressing. It’s hard to choose which is cutest, the reindeer pajamas (because who wouldn’t love reindeer wearing scarves?) or the milk and Santa-styled cookies option. Either way, your little one will look merry and warm when he’s wearing one of these sleep sets!

6.Crocheted Reindeer Photo Set

Santa has eight tiny reindeer (or nine, depending on who you ask!), so why not dress up your baby boy as one of them? You can take your pick with this crocheted reindeer set from Amazon. For me, the hat is truly the best part of this outfit – it comes with sweet little ears and antlers attached to the velvety-soft cap. But the pants, also ridiculously soft, come with a miniature reindeer tail that is just as cute. Did I mention this outfit is homemade and works excellent for newborn pictures?

Jolly Outfits For Baby Boys 3-6 Months Old

7. Merry Red-Nosed Reindeer Romper

The classic Christmas sweater meets adorable reindeer in the best of ways. This outfit consists of a silky soft wool and cotton blend. Vintage wooden buttons and a bright red pom pom add oodles of charm to this beautiful onesie. A rib-knitted collar provides plenty of stretches for your little one to tumble around in, too. 

8.Naughty or Nice? Boutique Onesie

Give your baby boy a handmade outfit to sport this Christmas. This sassy and sweet boutique find is 100% cotton for breathability and comes with tons of customization options. You can choose a long-sleeve or short-sleeve option for your little man to wear for family photos or the Christmas party. 

9.My First Candy Cane Christmas

Sweet stripes and holly are the highlights of this quaint hooded romper outfit. You’ll love the unique and cheerful cursive print and the cute baby-sized footprint that announce your little man’s first Christmas. The snaps on the legs and the roll-up cuffs add function to this fun outfit. This Amazon find is perfect for playdates, parties, and a comfortable nap!

10.Holiday Fleece Pajamas

Snowflakes and Christmas are a match made in Heaven. This Amazon set of fleece pajamas come decked out in beautiful snowflakes and a cute little penguin. Two, yes, two sets of pajamas come with warm footies and a zipper closure for cold-weather functionality. These pajamas are soft enough for sleep and sturdy enough for Christmas morning play. 

11.Ho Ho Ho Embroidered Romper

Everyone knows Santa says three little words as he comes down the chimney, “Ho, ho, ho!” Your little man will sport the Santa spirit in this striped red, and white onesie with Santa’s saying embroidered on the front. A matching striped hat, and sweet stitched-on Santa and reindeer, add extra Christmas spirit to this Amazon set. 

12.Up to Snow Good Jumper

Babies love textures! This Amazon exclusive “Up to Snow Good” jumper comes with a velvety reindeer, embroidered lights, and a soft pom pom nose for your son to explore as he rolls around in this classic jumper. A mock t-shirt design is complete with buffalo check long sleeves providing colorful contrast to engage your little one! This pun-derful outfit will be the talk of the Christmas party. 

Merry Outfits For Baby Boys 6-9 and 6-12 Months Old

14.Family’s Favorite Gift

Every momma knows their babies are the best presents, so why not share that with everyone? This gift-themed Walmart outfit belongs in every beloved baby’s wardrobe! The long sleeve onesie declares your baby boy to be the favorite gift of mommy and daddy in bright green and red script. The cute buffalo-checked animals printed on the pants and hat are a fun addition to the classic Christmas print. 

15.Oh, Deer! Reindeer Set

We love puns in my house. That’s why this reindeer-inspired onesie featured on Amazon is one of my favorite articles of clothing on this list! A cream-colored onesie trimmed in scarlet sports everyone’s favorite red-nosed reindeer and a sweet “Oh deer!” saying to inspire some holiday chuckles. A second onesie features a pattern of flying reindeer. Both onesies look great with the included red and cream snowflake bedecked pants!

16.Classic Christmas Jumpsuit

What’s classier than a Christmas jumper? If you’ve got a sweater gap to fill in your sweetie’s closet, check out this Amazon option. Crocheted and sporting classic wooden buttons and gorgeous crocheted elk, this jumpsuit is easy to slide on over your baby boy’s head and quick diaper changes. The sweet Christmas elk will earn oodles of “awwws” from your friends this Christmas!

17.Little Elf Utility Belt Onesie

Did you know that Santa’s elves have toolbelts? Of course they do! They need it for their hammers, candy canes, and tinsel! This unique Christmas onesie comes decked out with gold buttons, printed-on candy canes, matching striped leggings, and a hat! The vibrant, fade-resistant colors of this soft cotton number are a dealmaker!

18.Christmas Tree Truck

Every mother loves having a few heirloom outfits to tuck away for memories. This lovely romper is one such heirloom-worthy number. Cuffed sleeves and button-up closures add warmth and functionality to this set. But what really sells this Christmas outfit is the embroidered red Christmas truck and Christmas tree. The red checkered pattern of the truck beautifully contrasts with the swirling evergreen of the Christmas tree. You’ll want to tuck this outfit away in the memory chest!

19.Merry Merry Onesie

This classic-fit onesie makes a festive statement! This handmade boutique set includes a plaid patterned top knot hat and joggers, which handily feature a stylish and functional drawstring waist. The emerald green text on the onesie is a lovely and bold statement that stands out clearly on the creamy onesie!

20.Christmas Light Onesie

Babies love Christmas lights (I mean, who doesn’t?) The bright, sparkling colors catch the eye, and so does this Christmas light patterned pajama set. Your baby boy will love rolling around in this romper onesie, and the soft fabric will work great for playdates or sleeping. Plus, his set comes in sizes for older siblings and parents too!

21.Snowman Romper

If your family has a Christmas tradition involving snowmen, then check out this Amazon romper! Adorable snowmen dance around Christmas trees on this blue onesie set. You’ll love the styled polo collar and navy-colored cuffs that add gentlemanly charm to your baby boy’s outfit. This outfit will keep him warm while the family builds their own Frosty to celebrate the season!

22.Reindeer Games Set

Singing “Rudolph the Red Nose Reindeer” is a bit of a tradition in my house. This black, long-sleeved onesie is excellent for carol loving mommas to dress their little man in. The stretchy fabric is great for crawlers and walking babies, and the bright white text displays every reindeer’s name, including the red-nosed celebrity! Pair it with jeans, khakis, or Christmas pajama bottoms to suit your family’s Christmas event!

23.Single and Ready to Jingle Onesie

Get ready for some holiday chuckles! This cute handmade onesie is perfect for your little heartbreaker. You’ll have a good laugh at the “Single & Ready To Jingle” message! The mock Christmas sweater print is a great holiday twist to this sassy outfit. The raglan style is casual but easily dressed up, and you can choose if you want grey, black, or red sleeves for this outfit!

“Jolly” Outfits For Baby Boys 12-18 Months Old

24.En-Deering Christmas Pajamas

The pattern on these Christmas jammies radiates cuteness. Adorable reindeer and snowflakes romp around red Christmas trees on this super-soft jammy set. The zipper and button front makes your life a little easier around diaper changing time, too. These jammies will have your baby dreaming of sugar plums and milk on Christmas Eve!

25.A Gentleman’s Christmas Cardigan

Bowties and reindeer and cardigans – oh my! This cardigan onesie set from Amazon has it all. You’ll love the reindeers printed on the knees of the navy blue pants that complement the reindeer and heart-patterned cardigan onesie. The separate white onesie (yes, there are two onesies in this set!) includes a bright red bowtie to complete the adorable ensemble. This set will look great on your family Christmas card or holiday family pictures!

26.Holiday Suspenders Set

Dress your baby boy in a holiday-colored suspender outfit that gives off a vintage vibe! A red and white striped shirt evokes the candy cane image, accented by the bright red breast pocket and adorable snowflake sporting bowtie for your baby to wear. Throw on a flat cap, and your little man will be ready for a classy Christmas! Find this set on Amazon.

27.#1 Tree Picker

If you are looking for a fun, clever Christmas shirt for your baby boy, this one’s for you! This striped shirt comes with cute Santa and Rudolph appliqués and handsomely embroidered text declaring your baby boy as the “#1 Tree Picker!” This jersey knit shirt looks great with jeans, sweat pants, and khakis, so pair it up to your heart’s content!

28.Gingerbread Jammies Set

Nothing says Christmas more than the smell of gingerbread wafting through the house. If your mouth waters at gingerbread, or you love classic Christmas traditions, definitely give this jammy set a look. The silky-smooth cotton is comfortable, and more importantly, covered in whimsical gingerbread cookies. The beautiful imagery looks almost water-colored onto the fabric! Did I mention that this Amazon outfit is 100% organic cotton? Can you get better than that?

29.Santa Baby Onesie

Since 1953, “Santa Baby” has been making a statement on the airwaves. Let your baby boy make the statement in this long-sleeved, handmade onesie. The white onesie itself is soft and stretchy, with handy button snaps on the crotch for diaper changes and easily rolled-up sleeves. But what steals the show on this set is the bright, sparkling red cursive “Santa Baby” on the chest. This outfit will look great on your little man during Christmas photos or while opening presents. 

Have Fun On Your Christmas Shopping Adventure!

As you look for a Christmas outfit (or two!) for your baby boy, don’t be afraid to think outside the box. There are tons of options out there that give the traditional red, green, and Santa-covered Christmas outfits a fun new twist. Look for comfortable fabric, button snaps, and easy-to-wash designs. And, of course, don’t forget to take a ton of pictures of your baby boy in his festive new ensemble!

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