Angelfish
Fish | Kunihiko Kasahara |  All Easy Origami by Kunihiko Kasahara
| 96 | Square | |
Blowfish
Fish | Kunihiko Kasahara |  Creative Origami by Kunihiko Kasahara
| 103 | Square | |
Blowfish
Fish | Kunihiko Kasahara | All Easy Origami by Kunihiko Kasahara
| 94 | Square | 
Folded from a square of Fadeless Duet paper by Gilad Aharoni |
Blue shark
Fish - Sharks | John Montroll |  Origami La Era Nueva by Kunihiko Kasahara (read full review)
| 230 | Square | |
Carp
Fish | Jun Maekawa |  Viva! Origami by Kunihiko Kasahara (read full review)
| 24 | Rectangle - A size | 
Folded by Gilad Aharoni |
Carp
Fish | Kunihiko Kasahara |  Origami Omnibus by Kunihiko Kasahara (read full review)
| 260 | Square | |
Carp
Fish | Traditional |  Happy Origami by Kunihiko Kasahara (read full review)
| 42 | Square | 
Folded by JC Nolan |
Carp head
Fish | Kunihiko Kasahara |  New Discoveries in Origami 1 by Kunihiko Kasahara
| 30 | Square | |
Catfish person
Imaginary beings | Kunihiko Kasahara |  Origami Fantastic Creatures of the World by Kunihiko Kasahara
| 32 | Square | |
Crayfish
Crustaceans | Kunihiko Kasahara |  Bugagami by Jeffrey Rutzky
| 69 | Triangle | |
Crayfish
Crustaceans | Kunihiko Kasahara | Creative Origami by Kunihiko Kasahara
| 99 | Square | |
Crayfish
Crustaceans | Kunihiko Kasahara |  Cute! Cool! Beautiful! Animal Origami Book by Kunihiko Kasahara (read full review)
| 120 | Rectangle - 1X2 | |
Crested kingfisher
Birds - Coraciiformes - Kingfishers and Hoopoes | Kunihiko Kasahara | Cute! Cool! Beautiful! Animal Origami Book by Kunihiko Kasahara (read full review)
| 30 | Square | 
Folded from a square of scrapbooking paper by Gilad Aharoni |
Eel
Fish | Kunihiko Kasahara | All Easy Origami by Kunihiko Kasahara
| 66 | Rectangle - 1X2 | |
Fish
Fish | Kunihiko Kasahara |  All Cute Origami by Kunihiko Kasahara
| 198 | Square | |
Fish
Fish | Kunihiko Kasahara | Cute! Cool! Beautiful! Animal Origami Book by Kunihiko Kasahara (read full review)
| 106 | Square | |
Fish
Fish | Kunihiko Kasahara |  Origami - Arte del Piegare la Carta by Renzo Zanoni
| 94 | Square | |
Fish
Fish | Traditional |  The Magic of Origami by Alice Gray and Kunihiko Kasahara
| 80 | Square |
Folded by JC Nolan |
Fish - tropical
Fish | Kunihiko Kasahara |  Origami Made Easy by Kunihiko Kasahara (read full review)
| 95 | Square | |
Flying fish
Fish | Kunihiko Kasahara |  NOA Magazine 240 | 4 | Square
With cuts | |
Goldfish
Fish - Goldfish | Juan Gimeno |  As the Memories in Spain by Kunihiko Kasahara | 12 | Square | 
Folded by Rui Roda |
Goldfish
Fish - Goldfish | Kunihiko Kasahara | Creative Origami by Kunihiko Kasahara
| 101 | Square | |
Goldfish
Fish - Goldfish | Kunihiko Kasahara |  NOA Magazine 11 | 23 | Square
With cuts | |
Great white shark (Jaws)
Fish - Sharks | John Montroll | Origami La Era Nueva by Kunihiko Kasahara (read full review)
| 236 | Square | |
Hammerhead shark
Fish - Sharks | John Montroll | Origami La Era Nueva by Kunihiko Kasahara (read full review)
| 235 | Square | |
Jellyfish
Cnidarians - Anemones and Jellyfish | Kunihiko Kasahara | All Easy Origami by Kunihiko Kasahara
| 86 | Square | |
Jellyfish
Cnidarians - Anemones and Jellyfish | Kunihiko Kasahara |  Folding Rectangles by Kunihiko Kasahara
| 50 | Rectangle - Long strip | |
Kingfisher
Birds - Coraciiformes - Kingfishers and Hoopoes | Kunihiko Kasahara | All Easy Origami by Kunihiko Kasahara
| 187 | Square | |
Kingfisher
Birds - Coraciiformes - Kingfishers and Hoopoes | Kunihiko Kasahara |  My Fundamentals - BOS booklet 92 by Kunihiko Kasahara (read full review) | 30 | Square | |
Kingfisher
Birds - Coraciiformes - Kingfishers and Hoopoes | Kunihiko Kasahara | New Discoveries in Origami 1 by Kunihiko Kasahara
| 86 | Square | |
Manta ray
Fish | Kunihiko Kasahara | Cute! Cool! Beautiful! Animal Origami Book by Kunihiko Kasahara (read full review)
| 112 | Square | |
Pirahna
Fish | Jun Maekawa |  Origami El Mundo Nuevo by Kunihiko Kasahara (read full review)
| 78 | Square
Cute - with snapping action | 
Folded from a square of patterned origami paper by Gilad Aharoni |
Sea anemone
Cnidarians - Anemones and Jellyfish | Kunihiko Kasahara | All Easy Origami by Kunihiko Kasahara
| 84 | Square | |
Sea anemone
Cnidarians - Anemones and Jellyfish | Kunihiko Kasahara | All Easy Origami by Kunihiko Kasahara
| 83 | Square | |
Sea anemone
Cnidarians - Anemones and Jellyfish | Kunihiko Kasahara | All Easy Origami by Kunihiko Kasahara
| 102 | Square | |
Sea anemone
Cnidarians - Anemones and Jellyfish | Kunihiko Kasahara |  NOA Magazine 432
| 34 | Square | |
Sea anemone
Cnidarians - Anemones and Jellyfish | Kunihiko Kasahara | Origami Omnibus by Kunihiko Kasahara (read full review)
| 272 | Square | |
Sea urchin
Echinoderms - Starfish and Urchins | Kunihiko Kasahara |  Joy of Origami by Kunihiko Kasahara (read full review)
| 112 | Square | |
Sea urchin
Echinoderms - Starfish and Urchins | Kunihiko Kasahara |  Wonderful Origami by Kunihiko Kasahara (read full review)
| 62 | Square | |
Seahorse
Fish | Kunihiko Kasahara | All Easy Origami by Kunihiko Kasahara
| 64 | Square | |
Seahorse
Fish | Kunihiko Kasahara | Creative Origami by Kunihiko Kasahara
| 104 | Square | |
Seahorse - baby
Fish | Kunihiko Kasahara | Creative Origami by Kunihiko Kasahara
| 104 | Square | |
Shark
Fish - Sharks | Kunihiko Kasahara | All Cute Origami by Kunihiko Kasahara
| 196 | Square
2 units | |
Shark
Fish - Sharks | Kunihiko Kasahara | Creative Origami by Kunihiko Kasahara
| 102 | Square | |
Shark
Fish - Sharks | Kunihiko Kasahara | Origami Made Easy by Kunihiko Kasahara (read full review)
| 96 | Square
2 units | |
Shark
Fish - Sharks | Kunihiko Kasahara | Origami Omnibus by Kunihiko Kasahara (read full review)
| 262 | Square | |
Shellfish
Molluscs | Kunihiko Kasahara | Cute! Cool! Beautiful! Animal Origami Book by Kunihiko Kasahara (read full review)
| 122 | Rectangle - 1X2
2 units | |
Stingray
Fish | Kunihiko Kasahara | All Easy Origami by Kunihiko Kasahara
| 100 | Square | |
Tropical fish
Fish | Kunihiko Kasahara | Origami Omnibus by Kunihiko Kasahara (read full review)
| 264 | Square | |
