By remaining on the Site or clicking “OK,” you consent to Zazzle’s Terms of Use and Privacy Notice, and to Zazzle’s use of cookies and similar technologies (including those provided by third parties), which retain information to enable the Zazzle experience, track interactions, advertise, and for other related purposes. You may opt-out of this tracking by updating your cookies preferences.

Save up to 25% on Select Cards & Invitations* Shop Now ➞

Love It or We'll Take Back! 30-Day Returns Guaranteed *

Search for products or designs

Sell on Zazzle쑢Shopping Cart

WeddingsOpens a menu with links to top wedding-related pages.

Wedding Invitations ➞
Wedding Stationery ➞
Be My Bridesmaid Cards
Bridal Shower Invites
Enclosure Cards
Engagement Party Invites
Hen Party Invitations
Reception Invites
RSVP Cards
Save the Dates
Thank You Cards
Wedding Décor ➞
Guest Books
Menus
Napkins
Place Cards
Plates
Programs
Seating Charts
Wedding Signs
Table Numbers
Favour Packaging ➞
Beer Labels
Can Coolers
Favour Bags
Favour Tags
Magnets
Stickers & Labels
Water Labels
Wine Bottle Labels
Showers & Parties ➞
Bridal Shower Supplies
Hen Party Supplies
Wedding Gifts ➞
Bridesmaid Gifts
Groomsmen Gifts

All Weddings ➞

Wedding Stationery & Décor
From save the dates to signage, design every detail of your day.

Invitations & StationeryOpens a menu with links to top invitations & stationery-related pages.

Birthday Invitations ➞
Kids' Birthday Invitations
Adult Birthday Invitations
Joint Birthday Invitations
1st Birthday Invitations

Baby Invitations ➞
Baby Shower Invitations
Birth Announcements
More Invitations ➞
Christening Invitations
Christmas Invitations
Communion Invitations
Graduation Invitations
Halloween Invitations
Moving Announcements
Party Invitations
Greeting Cards ➞
Anniversary Cards
Birthday Cards
Christmas Cards
Father's Day Cards
Graduation Cards
Mother's Day Cards
New Baby Cards
Thank You Cards
Valentine's Cards
Personal Stationery ➞
Note Cards
Postcards
Post-it® Notes

Mailing Accessories ➞
Envelopes
Envelope Seals
Return Address Labels
Rubber Stamps & Ink

All Invitations & Stationery ➞

Cards & Invitations 
Personalise premium stationery for any event or milestone.

Gift Wrap & Party SuppliesOpens a menu with links to top crafts & party supplies-related pages.

Gift Wrapping ➞
Gift Bags
Gift Tags
Ribbon
Stickers & Labels
Tissue Paper
Wrapping Paper
Party Signs ➞
Backdrops
Banners
Posters & Prints
Party Stationery ➞
Guest Books
Menus
Place Cards
Programs
Table Numbers
Party Tableware ➞
Paper Cups
Paper Bowls
Paper Napkins
Paper Plates
Favours & Packaging ➞
Can Coolers
Favour Bags
Favour Boxes
Favour Tags
Food & Drink Labels

All Gift Wrap & Party ➞

Gift Wrap & Party Supplies
Make their day with personalised wrapping & party decorations.

Business EssentialsOpens a menu with links to top office & school-related pages.

Business Cards ➞
Bakery Business Cards
Beauty Business Cards
Construction Business Cards
DJ Business Cards
Hair Stylist Business Cards
QR Code Business Cards
Name Tags & Badges ➞
Marketing Materials ➞
Appointment Cards
Brochures
Flyers
Gift Certificates
Loyalty Cards
Menus & Price Lists
Referral Cards
Displays & Packaging ➞
Display Cards
Hang Tags & Inserts
Product Labels

Business Stationery ➞
Notebooks
Post-it® Notes
Rubber Stamps & Ink
Business Signs ➞
Banners
Posters & Prints
Window Decals

Calendars ➞

All Business ➞

Business Essentials
Boost your brand with quality business cards & marketing materials.

Art & HomeOpens a menu with links to more categories of top pages.

Mugs ➞
Funny Mugs
Photo Mugs

Barware ➞
Beer Glasses
Can Coolers
Shot Glasses
Whiskey Glasses
Wine Glasses
More Homeware ➞
Aprons
Blankets
Christmas Tree Decorations
Cushions
Posters & Prints ➞
Abstract Posters
Botanical Posters
Fine Art Posters
Nursery Posters
Travel Posters
Vintage Posters

Art & Home 
Style your space with personalised posters, cushions, mugs & more.

T-Shirts & Accessories

T-Shirts ➞
Men's T-Shirts
Women's T-Shirts

Birthday T-Shirts
Funny T-Shirts
Photo T-Shirts
Vintage T-Shirts
Wedding T-Shirts
Accessories ➞
Badges
Beach Towels
Hats
Luggage Tags
Socks
Ties
Tote Bags
Sports & Games ➞
Golf Balls
Playing Cards
Puzzles

T-Shirts, Tote Bags & More
From business to birthdays to bridal showers, customise items for any occasion.

Create Your OwnOpens a menu with links to top Create-Your-Own products.

T-Shirts & Accessories
Badges
Hats
Socks
Ties
Tote Bags
T-Shirts

Sports & Games
Golf Balls
Playing Cards
Puzzles
Art & Home
Aprons
Blankets
Christmas Tree Decorations
Cushions
Mugs
Posters
Gift Wrap & Party
Paper Napkins
Party Signs
Stickers
Wrapping Paper
Business
Business Cards
Flyers
ID Badges
Post-it® Notes
Invitations & Stationery
Greeting Cards
Guest Books
Invitations
Menus
Programs
Return Address Labels
Rubber Stamps
Save the Dates

All Create Your Own ➞

Create Your Own
Make your own mugs, t-shirts & more with our easy design tool.

Popular Under The Sea Birthday Cards

339 results

Invitations & Stationery

쎃

Greeting Cards

쎃

Birthday Cards

All Products

< Invitations & Stationery

< Greeting Cards

Folded...

Flat...

Vertical...

Horizontal...

Rectangle...

Square...

Bracket...

Rounded...

Circle...

12.7 x 17.8 cm...

10.8 x 14.2 cm...

13.3 x 13.3 cm...

10.1 x 14.2 cm...

8.9 x 12.7 cm...

16.5 x 22.2 cm...

14 x 19.1 cm...

8.9 x 5.1 cm...

Under $5

$5 to $15

$15 to $25

$25 to $50

Design Colour

Number of Photos

Letterpress

Foil

Type

Format

Orientation

Shape

Size

Price

Design Style

Special Picks

Events & Occasions

Recipients

Brand

Creator Store

Makers

Design Options

Colour

f_zevt

Sort by:

Pirate Skull Ghost Ship Captain Card

Price$6.54

Collection

Pirate Skull Sunset Ship Card

Price$6.54

Save 15%

Purrmaid cat mermaid cute girl happy birthday card

Sale Price $4.59.$4.59 Original Price $5.39.$5.39

Collection

Mermaid Birthday Card for Girls

Price$5.94

Mermaid Princess Of Atlantis Birthday Card

Price$6.29

Mermaid Birthday Card for Girls

Price$5.94

Happy Birthday Sting Ray Card

Price$6.59

cute whale girl 1st birthday card

Price$6.54

Unique Pirate Skull Birthday Card

Price$6.54

This Mermaid Is 3 Mermaids 3rd Birthday Girl

Price$5.79

Pink Mermaid Birthday Card

Price$6.54

Shellebrate Under The Sea Watercolor Birthday Card

Price$5.44

Save 10%

Mermaid Gold 3rd Birthday Foil Card

Sale Price $7.16.$7.16 Original Price $7.95.$7.95

Real Foil

Green Gold Turquoise Mermaid Tail Pool Party Postcard

Price$3.30

Ocean Mermaid Happy Birthday Postcard

Price$3.15

Puffer Fish Birthday Folded Greeting Card

Price$5.59

Golden Mermaid and Octopus Birthday Card

Price$7.04

Axolotl Under the Sea Birthday Girl Cute Ocean Postcard

Price$3.60

Blush Pink Gold Turquoise Mermaid Tail Pool Party Postcard

Price$3.30

Dolphin Birthday Card

Price$5.99

Collection

Save 10%

Jellyfish watercolor colorful modern aquatic

Sale Price $6.93.$6.93 Original Price $7.70.$7.70

Pirate Skull Captain Jack Card

Price$6.54

Pirate Jolly Roger Captain Card

Price$6.54

Under the Awning, Joaquín Sorolla Card

Price$6.64

Mermaid Tail Under the Sea Birthday Thank You Card

Price$5.94

Collection

Cute Colourful Mermaid Under the Sea Holiday Card

Price$4.04

Cute Smiling Red Octopus Hearts Happy Birthday Postcard

Price$2.90

Cool Starfish Happy Birthday Card

Price$6.74

Under the sea clownfish birthday invitation postcard

Price$3.85

Cute Mermaid Under the Sea Neon

Price$4.89

Save 10%

Red Coral Reef ocean art

Sale Price $7.16.$7.16 Original Price $7.95.$7.95

Save 15%

Your child riding a whale, whale greeting card

Sale Price $5.86.$5.86 Original Price $6.89.$6.89



Starfish Mermaid Princess Birthday Card

Price$8.48

Save 15%

Your child riding a shark, put my face in the card

Sale Price $5.86.$5.86 Original Price $6.89.$6.89

Save 15%

Make my child a mermaid princess, custom mermaid card

Sale Price $5.86.$5.86 Original Price $6.89.$6.89

Mermaid Under the sea birthday Postcard Invitation

Price$3.85

Cute Personalised Purple Mermaid Birthday Card

Price$9.04

Save 15%

Make my child a mermaid princess, custom mermaid card

Sale Price $5.86.$5.86 Original Price $6.89.$6.89

Mermaid Personalised Age & Name Cute Birthday Card

Price$6.64

Save 15%

Your child riding a dolphin, put my face in the card

Sale Price $5.86.$5.86 Original Price $6.89.$6.89

Save 15%

Your child riding a dolphin, put my face in the card

Sale Price $5.86.$5.86 Original Price $6.89.$6.89

Cute Blue & Pink Mermaid Birthday Card For Girls

Price$9.89

Dolphins swiming under the sea card

Price$5.94

Custom Name Girl's Mermaid Birthday Card

Price$9.89

Cute Pink & Blue Mermaid Birthday Card For Girls

Price$9.89

Pink Sea Turtle Whimsical & Cute Birthday Card

Price$6.54

Sweet Personalised Mermaid Birthday Card for Girls

Price$9.89

Save 15%

Your child riding a baby shark, great white shark card

Sale Price $5.86.$5.86 Original Price $6.89.$6.89

Save 15%

Your child riding a great white shark, shark blank card

Sale Price $5.86.$5.86 Original Price $6.89.$6.89

Oceans of Love Birthday: Dolphin Under Water Card

Price$5.94

Personalised Submarine Children's Birthday Invite

Price$9.24

Personalised Submarine Children's Birthday Invite

Price$9.24

Wishing You a Mermazing Birthday Under The Sea Card

Price$5.94

Mermaid Happy Birthday Card

Price$5.94

Collection

Mermaid Happy Birthday Card

Price$5.94

Collection

Under the Sea Mermaid Birthday Card

Price$5.59

Mermaid Cute Pink Blue Under The Sea Birthday Card

Price$5.94

Under the Sea Birthday Card

Price$6.74

Under the Sea Mermaid Birthday Greeting Card

Price$6.29

Collection

Under The Sea Personalised 7th Birthday Card

Price$6.64

쎂Previous 2 3 4 5 6 Next쎃

The Zazzle Promise

Love It Guarantee
Don't love it? We'll take it back! 30-day returns “100% Love It Guarantee.”
Easy International Delivery
Hassle-free shipping with no surprise fees. We cover any customs & duties.
Secure Shopping Guaranteed
100% Secure payment with SSL Encryption.

Search Feedback

Did you find what you were looking for?

YesNo

If you need help or have a question for Customer Service, please visit our Help Centre