Birthday Flat Cards

Celebrate every birthday with personalized flair by choosing the perfect birthday flat cards. These custom creations offer a unique way to share joy and excitement with friends and family, capturing the essence of each special day. Whether you're planning a grand party or an intimate gathering, our selection of beautifully designed cards allows you to express your style and set the tone for your celebration. From vibrant colors to elegant designs, find the ideal card to make your loved one's birthday truly unforgettable.

Bold Headline Birthday Card, White, 5x7 Flat, Write Your Own Greeting, Standard Smooth Cardstock, Square, White

Starting at $3.06

A stylish white birthday card with a favorite photo and personalized message, made of smooth cardstock.

Pros: customization, met expectations, satisfaction

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First Collage Birthday Invitation, White, 5x7 Flat, Standard Smooth Cardstock, Rounded, White

Starting at $3.34 $3.33

A stylish white birthday invitation with space for favorite photos and event details.

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Classic Caption Birthday Invitation, Brown, 5x7 Flat, Pearl Shimmer Cardstock, Square, Taupe

Starting at $3.72 $3.60

A brown 5x7 matte birthday invitation with a faux foil/glitter design on signature smooth cardstock.

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Surprise Party Birthday Invitation, White, 5x7 Flat, 100% Recycled Cardstock , Square, White

Starting at $3.88 $3.70

A stylish white birthday invitation with photos and event details on signature smooth cardstock.

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Hooray Day Birthday Card, Yellow, 5x7 Flat, Luxe Double-Thick Cardstock, Square, Golden

Starting at $5.42 $4.62

A stylish yellow birthday card with personalized photo and message, on 5x7 smooth cardstock.

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Painted Cake Birthday Card, Pink, Rose Gold Foil, 5x7, Matte, Personalized Foil Cardstock, Rounded, Salmon

Starting at $5.39 $5.38

A personalized 5x7 birthday card in pink with rose gold foil accents and a matte finish.

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Pastel Happy Day Birthday Invitation, Pink, Standard Smooth Cardstock, Rounded, Pink

Starting at $3.34 $3.33

A stylish pink birthday invitation with space for photos and event details on signature smooth cardstock.

Pros: appearance, cute design, good quality

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Bold Party Birthday Invitation, White, 5x7 Flat, 100% Recycled Cardstock , Square, White

Starting at $3.88 $3.70

A stylish white birthday invitation with customizable photos and event details on standard smooth cardstock.

Pros: easy to use, perfect card stock, beautiful print

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Party People Birthday Invitation, Beige, 5x7 Flat, Standard Smooth Cardstock, Square, Cream

Starting at $3.06

A beige birthday invitation with a pearl shimmer cardstock and scallop trim, designed by Petite Lemon.

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Party Candles Boy Birthday Invitation, Blue, 5x7 Flat, Standard Smooth Cardstock, Square, Lapis

Starting at $3.06

A stylish blue 5x7 flat birthday invitation on smooth cardstock with rounded trim for boys.

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Blushing Birthday Birthday Invitation, Pink, 5x7 Flat, Pearl Shimmer Cardstock, Square, Dusk Pink

Starting at $3.72 $3.60

A stylish pink birthday invitation with pearl shimmer cardstock and ticket trim, perfect for adding photos and event details....

Pros: Impressive photo and picture options, Excellent customer service, Quick delivery and accurate results, Beautiful color and style, Great quality and design

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Bokeh Confetti Birthday Invitation, none, Black, 5x7 Flat, Matte, Signature Smooth Cardstock, Rounded, Black

Starting at $3.71 $3.70

A stylish black birthday invitation with bokeh confetti design and space for photos and event details.

Pros: Beautiful design, High quality, Easy to personalize, Quick delivery, Professional appearance

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Rustically Floral Birthday Invitation, White, 5x7 Flat, 100% Recycled Cardstock , Rounded, White

Starting at $4.16 $3.97

A rustic floral birthday invitation with scallop trim, customizable with photos and event details.

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Bright Birthday Birthday Invitation, Pink, 5x7 Flat, Pearl Shimmer Cardstock, Square, Priscilla

Starting at $3.72 $3.60

A stylish pink birthday invitation with rounded trim and customizable photos and event details.

Pros: cute, met expectations, nice colors

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Adorable Rainbow Birthday Invitation, Gray, 5x7 Flat, Standard Smooth Cardstock, Square, Gray

Starting at $3.06

A stylish gray birthday invitation with a scallop trim, made from pearl shimmer cardstock.

Pros: cuteness, quality, cute design

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Happy Confetti Girl Birthday Invitation, Pink, 5x7 Flat, Pearl Shimmer Cardstock, Square, Shrimp

Starting at $3.72 $3.60

A stylish pink birthday invitation with confetti design, perfect for a girl's celebration.

Pros: cute design, beautiful, ease of use

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Level Up Birthday Invitation, Yellow, 5x7 Flat, 100% Recycled Cardstock , Square, Sunshine

Starting at $3.88 $3.70

A stylish yellow birthday invitation with pearl shimmer cardstock and bracket trim.

Pros: template, unique design, good product

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Cocktail Cheers Birthday Invitation, Black, 5x7 Flat, Matte, Signature Smooth Cardstock, Square, Black

Starting at $3.43

A stylish black birthday invitation with space for photos and event details on signature smooth cardstock.

Pros: easy to use, good invitation, invitation design

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Dino Mite Birthday Invitation, Blue, 5x7 Flat, Pearl Shimmer Cardstock, Rounded, Navy

Starting at $4 $3.87

A stylish blue birthday invitation with scallop trim, perfect for adding photos and event details.

Pros: fast shipping, adorable design, customizable

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Floral One Birthday Invitation, Beige, 5x7 Flat, Matte, Signature Smooth Cardstock, Square, Latte

Starting at $3.43

A stylish beige birthday invitation with a matte finish, featuring a bracket trim and signature smooth cardstock.

Pros: easy to assemble, perfect picture, nice paper

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Party Candles Girl Birthday Invitation, Pink, 5x7 Flat, 100% Recycled Cardstock , Rounded, Hot Pink

Starting at $4.16 $3.97

A stylish pink birthday invitation with scallop trim, perfect for a girl's party, featuring favorite photos and event details....

Pros: cute design, perfect picture sharing, clear image

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Elegant One Birthday Invitation, Grey, 5x7 Flat, Pearl Shimmer Cardstock, Rounded, Charcoal

Starting at $4 $3.87

An elegant grey 5x7 flat birthday invitation on standard smooth cardstock with rounded trim.

Pros: design, layout, beautiful

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Happy Hooray Birthday Invitation, Blue, 5x7 Flat, Standard Smooth Cardstock, Rounded, Blue

Starting at $3.34 $3.33

A blue birthday invitation with photo and event details, on signature smooth cardstock.

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Whimsical Party Time Birthday Invitation, Grey, 4x8 Flat, Standard Smooth Cardstock, Square, Charcoal

Starting at $3.06

A stylish grey birthday invitation with space for photos and event details, made with standard smooth cardstock.

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Birthday Flat Cards

Birthday flat cards offer a timeless and elegant way to celebrate life’s milestones, capturing the spirit of the occasion with creativity and style. Whether you’re planning a cozy winter gathering in January, a vibrant outdoor party in the spring, or a milestone birthday bash any time of year, flat cards provide a beautiful canvas for sharing your message. Their single-panel design allows for striking visuals, from heartfelt photos to playful illustrations, making each card a keepsake that guests will cherish. With ample space for personalized details, you can set the tone for your event—whether it’s a whimsical first birthday for your child, a sophisticated soirée for a loved one, or a surprise party that’s been months in the making. The tactile experience of holding a thoughtfully designed card in hand adds a layer of anticipation and excitement, inviting recipients to join in the celebration and marking the date as something truly special.

When selecting birthday flat cards, consider the personality and preferences of the guest of honor. For a child’s birthday, bright colors and playful designs can capture the joy and wonder of the occasion, while for adults, you might opt for a more refined layout with elegant fonts and subtle embellishments. These cards are not only invitations but also meaningful mementos—many families tuck them away in scrapbooks or display them on the fridge as a reminder of happy times. If you’re sending birthday wishes from afar or organizing a virtual celebration, flat cards can serve as thoughtful greetings, bridging the distance with a personal touch that digital messages simply can’t replicate. Friends, family members, classmates, and colleagues alike will appreciate the gesture, especially during the quieter winter months when a bright envelope in the mailbox brings a welcome burst of cheer.

As you browse the selection, think about how the card’s texture, finish, and imagery reflect the mood you want to create. From glossy and vibrant to softly matte, the right choice can elevate your message and make your invitation stand out. You might be drawn to themes that echo the season—snowflakes and cozy motifs in January, or bold patterns for a milestone birthday. For those who appreciate a smooth, polished look, you may want to explore options like Birthday Smooth Cards, which offer a refined finish and a luxurious feel. Whatever your style, birthday flat cards make it easy to express your creativity and thoughtfulness, ensuring your celebration starts on a memorable note.