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 Cards & Invitations* Shop Now ➞

Save up to 20% on Business Cards* Shop Now ➞

Search for products or designs

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

358 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...

10.1 x 14.2 cm...

13.3 x 13.3 cm...

16.5 x 22.2 cm...

8.9 x 12.7 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

Creator Store

Makers

Design Options

Colour

Sort by:

Cute Mermaids Under the Sea Watercolor Birthday Card

Price$6.54

Mermaid tail Watercolor Birthday Under the Sea Postcard

Price$2.75

Collection

Mermaid Cute Dark Hair Under The Sea Birthday Card

Price$5.94

One Photo Mermaid Fourth Birthday Card

Price$5.59

Mermaid themed Birthday Party Postcard

Price$3.25

Save 10%

Under the Sea Birthday Card

Sale Price $16.38.$16.38 Original Price $18.20.$18.20

Mermaid Watercolor Photo Birthday Under the Sea Postcard

Price$3.00

Collection

Under the Sea Quad Happy Birthday Card

Price$6.74

Save 25%

Cute Ocean And Turtle Happy Birthday Holiday Card

Sale Price $3.74.$3.74 Original Price $4.98.$4.98

Happy Birthday Under the Sea Card with Fish

Price$5.33

Childrens Whale Birthday Card

Price$5.59

Classic Turtle And Ocean Happy Birthday Card

Price$5.38

Turtle And Ocean Happy Birthday Card

Price$5.38

Funny 8th Birthday Sea Animal Cartoon Jellyfish Card

Price$5.59

2nd Birthday Fish Cartoon Cute Red Blue Shark Card

Price$5.59

4th Birthday Funny Cute Red Sharks Cartoon Fish Card

Price$5.59

Cute 1st Birthday Sea Animal Cartoon Jellyfish Card

Price$5.59

Cute Colourful mermaid Rainbow Birthday party kids Postcard

Price$2.75

Postcard

Price$2.64

Collection

Pink and Purple Mermaid Birthday Thank You

Price$5.14

Postcard

Price$2.64

Sea World

Price$34.75

Octopus under the sea kids pattern

Price$5.29

Beluga Whale Cartoon Blue Green Arctic Ocean Postcard

Price$3.15

Sea World

Price$5.29

Let's shell-ebrate under the sea blue birthday postcard

Price$2.75

Mermaid birthday card

Price$5.59

Yellow Tang Reef Fish Postcard

Price$3.15

Save 15%

Mermaid Under Sea Adventure Birthday Party Invite

Sale Price $3.86.$3.86 Original Price $4.54.$4.54

Mermaid tail Watercolor Birthday Under the Sea Postcard

Price$3.00

Collection

Cute Mermaid Ocean Happy 2nd Birthday Card

Price$5.94

Mermaid Photo Watercolor Birthday Under the Sea Postcard

Price$3.00

Collection

Two fast Cute rainbow turtle Whale fish Birthday Postcard

Price$2.75

Collection

Cute Jellyfish Childrens Birthday Card

Price$5.59

Cute Colourful mermaid Rainbow Birthday party kids Postcard

Price$2.75

Stingray Birthday Party Invitation Invite Pool Postcard

Price$2.75

Fun rainbow shark birthday balloon party Family Postcard

Price$2.75

Collection

Cute Colourful mermaid Rainbow Birthday party kids Postcard

Price$2.75

Mermaid Fantasy 1 Happy Birthday Card

Price$5.94

One happy blue octopus under the sea birthday postcard

Price$2.75

Cute Floral Dolphin Birthday Party Card

Price$5.59

Collection

Mermaid tail Watercolor Birthday Under the Sea Postcard

Price$2.75

Collection

Scuba Diver Cat Happy Birthday under the sea Postcard

Price$2.75

Collection

Cute Floral Turtle Birthday Party Card

Price$5.59

Collection

Cute Floral Starfish Birthday Party Card

Price$5.59

Collection

Cute Floral Whale Happy Birthday Card

Price$5.59

Collection

Cute Floral Jellyfish Birthday Party Card

Price$5.59

Collection

Cute Floral Seahorse Happy Birthday Card

Price$5.59

Collection



A Swimming Sea Turtle & Colouring Page Birthday Card

Price$5.59

Mermaid Under the Sea Birthday Party Postcard

Price$3.03

Oneder the Sea Whimsical Sparkly Mermaid Birthday Postcard

Price$2.95

illusima Cotton Candy Mermaid Green Birthday Card

Price$5.33

Collection

Splish Splash Whimsical Sparkle Mermaid Birthday Postcard

Price$2.95

Mermaid Under The Sea Birthday Invitation Postcard

Price$2.85

Mermaid Birthday Card for Grandaughter Any Age

Price$5.59

Mermaid Happy Birthday Card

Price$5.94

Collection

Mermaid tail Watercolor Birthday Under the Sea Postcard

Price$3.00

Collection

Cute green sea turtle happy cartoon illustration card

Price$5.59

Mermaid Birthday Card for Daughter Any Age

Price$5.59

Octopus Extra Arms For Hugging Whimsy Birthday Postcard

Price$2.90

쎂Previous 1 2 3 4 5 Next쎃

The Zazzle Promise

Order with Confidence
If something goes wrong on our end, we'll make it right, on every order. Learn more!
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

Get Exclusive Offers

About
Press
Careers

Login
My Account
Track my order
Return Policy
Help

Sell on Zazzle
Ambassador Program

Sitemap
Blog
Content Filter:

Choose a region and language

User Agreement | Privacy Notice