Fish cakes are a delightful and unique dessert option that can be customized for birthdays, parties, or any special celebration. Whether you’re looking for a fish cake design for girls, boys, or kids, these creative ideas will inspire you to make a stunning edible masterpiece. Below, we’ve compiled 10 fish cake design ideas with tips and inspiration to help you craft the perfect cake.
1. Underwater Fantasy Fish Cake Design
Perfect for: Kids’ birthdays, ocean-themed parties
This design features a vibrant underwater scene with colorful fondant fish, coral reefs, and edible glitter to mimic water. Add blue buttercream waves for a realistic touch.

2. Cartoon Fish Cake Design for Kids
Perfect for: Children’s birthdays
Kids love cartoon characters! Design a cake shaped like a friendly fish, such as Nemo or Dory, using bright fondant and playful details. Add edible googly eyes for extra cuteness.

Fish Cake Design for Kids Tip: Use round cake tins and carve the fish shape for an easy yet adorable result.
3. Mermaid-Themed Fish Cake for Girls
Perfect for: Girls’ birthdays, mermaid parties
Combine a fish and mermaid theme by designing a cake with a fish tail merging into a mermaid silhouette. Decorate with pearl sprinkles, seashells, and pastel colors.

Fish Cake Design for Girl Tip: Use shimmer dust to give the tail a magical, iridescent effect.
Also Read: 10 Stunning Mermaid Cake Designs for a Magical Celebration
4. Shark Attack Fish Cake Design for Boys
Perfect for: Boys’ birthdays, adventure-themed parties
Create an exciting shark-shaped cake with an open mouth showing fondant fish “swimming away.” Use gray fondant and red accents for a dramatic effect.

Fish Cake Design for Boy Tip: Add toothpick fins for a 3D look.
5. Rainbow Fish Cake Design
Perfect for: Colorful celebrations, LGBTQ+ events
Inspired by the famous Rainbow Fish book, this cake features multicolored fish scales made from edible glitter or metallic fondant.
6. Fishing Pond Cake Design
Perfect for: Outdoor-themed parties, dad’s birthday
Design a cake that looks like a fishing pond, complete with a fondant fishing rod and edible fish “swimming” in blue buttercream.

Fish Cake Design Tip: Use gummy fish candies for a fun, edible surprise.
7. Goldfish Bowl Cake Design
Perfect for: Pet lovers, kids’ parties
Shape your cake like a fishbowl with clear gelatin or isomalt to mimic water. Add fondant goldfish and edible pebbles for a realistic touch.

Fish Cake Design for Kids Tip: Use a glass bowl mold for the perfect shape.
8. Sushi-Inspired Fish Cake Design
Perfect for: Japanese-themed parties, food lovers
Create a cake that looks like a sushi platter, with fish-shaped fondant pieces on top of “rice” (shredded coconut or white fondant).

Fish Cake Design Images Tip: Add soy sauce and wasabi details using colored frosting.
9. Angry Birds Fish Cake Design
Perfect for: Gamers, cartoon lovers
Design a cake inspired by the Angry Birds fish characters, using bright red and yellow fondant.

Fish Cake Design for Boy Tip: Use printed edible images for precise character details.
10. Simple Fish-Shaped Cupcake Design
Perfect for: Small gatherings, school parties
If a full cake seems overwhelming, decorate cupcakes with mini fish designs using fondant or piped buttercream.

Fish Cake Design for Kids Tip: Use fish-shaped cookie cutters for uniform designs.
Final Thoughts
Whether you need a fish cake design for a birthday, a girl, a boy, or kids, these ideas offer endless inspiration. From underwater fantasies to playful cartoon designs, there’s a perfect fish cake for every occasion.
Which fish cake design is your favorite? Let us know in the comments!
Also Read: 15 Adorable Elephant Cake Designs for a Fun-Filled Kids’ Birthday
My Name is Sanjeev Vekariya, I cover Articles related to Baking, Recipes, Desserts and Cake . I have more than 5 Years of Experience in Writing Food Article.