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, Rounded, White

Starting at $3.34 $3.33

A stylish 5x7 flat birthday card on pearl shimmer cardstock with a ticket trim and personalized photo.

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Perfectly Aged Birthday Invitation, Black, 5x7 Flat, 100% Recycled Cardstock , Square, Black

Starting at $3.88 $2.50

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

Pros: quality, affordable, perfect

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Classic Caption Birthday Invitation, Brown, 5x7 Flat, 100% Recycled Cardstock , Rounded, Taupe

Starting at $4.16 $2.77

A 5x7 flat birthday invitation on 100% recycled brown cardstock with a classic caption design.

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Speckled Hello Birthday Invitation, White, 5x7 Flat, 100% Recycled Cardstock , Rounded, White

Starting at $4.16 $2.77

A stylish birthday invitation with a white speckled design, printed on pearl shimmer cardstock.

Pros: good quality, accurate representation, great price

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Bold Party Birthday Invitation, White, 5x7 Flat, Standard Smooth Cardstock, Square, White

Starting at $3.06

A stylish 5x7 flat birthday invitation in white on matte signature smooth cardstock.

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

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Captivating Confetti Birthday Invitation, White, 5x7 Flat, 100% Recycled Cardstock , Square, White

Starting at $3.88 $2.50

A 5x7 flat white birthday invitation on smooth cardstock with a confetti design and rounded trim.

Pros: perfect invitations, loved invitation, positive feedback from invitees

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Happy Confetti Boy Birthday Invitation, Blue, 5x7 Flat, Pearl Shimmer Cardstock, Square, Marine

Starting at $3.72 $2.40

A stylish blue 5x7 flat birthday invitation on matte signature smooth cardstock with bracket trim.

Pros: neatness, cute card, clean look

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Bold Message Birthday Card, Blue, none, 5x7 Flat, Matte, Signature Smooth Cardstock, Square, Majorca

Starting at $3.43 $2.23

A stylish blue birthday card with personalized photo and message, on matte signature smooth cardstock.

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Celebrate Birthday Girl Birthday Invitation, White, 5x7 Flat, Pearl Shimmer Cardstock, Square, White

Starting at $3.72 $2.40

A stylish white birthday invitation with scallop trim, perfect for celebrating a birthday girl.

Pros: cute design, easy to use customization tool, affordable price

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Poppin Party Birthday Invitation, Pink, 5x7 Flat, Matte, Signature Smooth Cardstock, Rounded, Azalea

Starting at $3.71 $2.50

A pink Poppin Party Birthday Invitation with a matte finish and no actual foil or glitter.

Pros: suitability for birthday celebration, ability to include additional details and photos, design

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Celebrate Birthday Boy Birthday Invitation, White, 5x7 Flat, Matte, Signature Smooth Cardstock, Rounded, White

Starting at $3.71 $2.50

A stylish birthday invitation for boys, featuring favorite photos and event details on luxe double-thick cardstock.

Pros: attractive cards, easy to create, great designs

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Celebrate Centerpiece Birthday Invitation, White, 5x7 Flat, Standard Smooth Cardstock, Square, White

Starting at $3.06

A stylish 5x7 flat birthday invitation on 100% recycled white cardstock with a ticket trim.

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

Starting at $3.34 $3.33

A stylish black birthday invitation with bokeh confetti design and rounded trim, customizable with photos and event details....

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

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

Starting at $4 $2.67

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

Pros: cute, met expectations, nice colors

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Floral One Birthday Invitation, Beige, 5x7 Flat, Pearl Shimmer Cardstock, Square, Latte

Starting at $3.72 $2.40

A beige floral birthday invitation with space for photos and event details on signature smooth cardstock.

Pros: easy to assemble, perfect picture, nice paper

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Dino Mite Birthday Invitation, Blue, 5x7 Flat, Matte, Signature Smooth Cardstock, Square, Navy

Starting at $3.43 $2.23

A stylish blue birthday invitation with pearl shimmer cardstock and space for favorite photos.

Pros: fast shipping, adorable design, customizable

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Cocktail Cheers Birthday Invitation, Black, 5x7 Flat, 100% Recycled Cardstock , Square, Black

Starting at $3.88 $2.50

A stylish black birthday invitation with scallop trim and pearl shimmer cardstock, customizable with photos and event details....

Pros: easy to use, good invitation, invitation design

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Big One Girl Birthday Invitation, none, Orange, 5x7 Flat, Luxe Double-Thick Cardstock, Square, Peach

Starting at $5.42 $3.42

A stylish, orange birthday invitation for girls featuring favorite photos and event details on luxe cardstock.

Pros: love, cute design, no extra cost

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Onederful Boy Birthday Invitation, Blue, 5x7 Flat, Standard Smooth Cardstock, Rounded, Blue

Starting at $3.34 $3.33

A stylish blue birthday invitation with scallop trim, perfect for celebrating another year of fun.

Pros: cute design, brand loyalty, meets expectations

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Fine Florals Birthday Invitation, Pink, 5x7 Flat, 100% Recycled Cardstock , Square, Blush

Starting at $3.88 $2.50

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

Pros: beautiful, pretty, pleasing result

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Patchwork Pattern Birthday Invitation, Pink, 5x7 Flat, 100% Recycled Cardstock , Square, Poppy

Starting at $3.88 $2.50

A stylish pink birthday invitation on 100% recycled cardstock with rounded trim, perfect for adding photos and details.

Pros: perfect for birthday, perfect invitation, good service

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Farmhouse Frame Birthday Invitation, White, 5x7 Flat, Luxe Double-Thick Cardstock, Square, White

Starting at $5.42 $3.42

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

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Balloon Surprise Birthday Invitation, Black, 5x7 Flat, Pearl Shimmer Cardstock, Square, Black

Starting at $3.72 $2.40

A stylish black birthday invitation with pearl shimmer cardstock and space for favorite photos.

Pros: love it, perfect fit

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Color Cadence Birthday Invitation, White, 5x7 Flat, Luxe Double-Thick Cardstock, Square, White

Starting at $5.42 $3.42

A stylish 5x7 flat birthday invitation on white standard smooth cardstock, perfect for adding photos and event details.

Pros: personalization, color, good as momentos

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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.