17 aquatic theme designs graphics for t-shirt and print on demand merch

Download aquatic theme t-shirt designs and other merch graphics like book covers, phone cases, tote bags and more.

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Water surface. Blue abstract background. Vector illustration for design.
Abstract ocean-themed design featuring a calming color palette of blue, green, and peach. The fluid shapes and wavy patterns evoke a sense of peace and tranquility.
Birthday invitation card vector template design. Mermaid birthday girl underwater theme with fish tail watercolor background for party aquatic invitation card. Vector illustration mermaid template set
Set of vector watercolor seaweed and corals isolated on white. Sea theme, design element, decoration of water entertainment places, parks, beaches.
Set of vector watercolor seaweed and corals isolated on white. Sea theme, design element, decoration of water entertainment places, parks, beaches.
Simple seamless pattern with abstract ocean waves in blue tones on white background. Ideal for kids decor, summer textiles, marine designs, and beach-themed products
Birthday mermaid invitation vector template design. Birthday girl invitation card in underwater theme poster set with mermaid tail in water color template. Vector illustration party card design.
Jellyfish silhouette swims in the ocean. Marine creature glides through underwater life. Chalk style, aquatic theme, ideal for summer designs or aquarium decorations.
Jellyfish in a simple, hand-drawn doodle style. A minimalist outline icon of a sea creature for ocean or aquatic-themed designs.
Four vibrant betta fish in bold shades of red, orange, blue, and green with elegant, flowing fins ideal for aquatic-themed art, decor, pet illustrations, and eye-catching digital designs.
Fun Color by Number Ocean Theme Featuring a Cute Blue Whale, Ideal for Children's Creative Activities, Learning, and Development.
Illustration of a fish with detailed scales and fins. Fish design features a side view, showcasing the fish's intricate patterns and natural colors. Fish art for aquatic themes. Marine life vector.
Blue water splash and wave icon set, aquatic theme vector, ocean drop elements, summer design, clean and modern illustration
Light blue fish illustration swims peacefully, perfect for educational materials or aquatic themes
Blue water splash and wave icon set, aquatic theme vector, ocean drop elements, summer design, clean and modern illustration
Elegant white betta fish with flowing fins and lifelike detail, perfect for aquatic-themed designs, pet illustrations, or sophisticated nature-inspired artwork.
A simple and clean red cartoon fish vector design. Perfect for seafood packaging, fishing icons, aquatic themes, and educational illustrations.
Vintage fish illustration. Detailed fish drawing with scales and fins. Classic fish art, perfect for aquatic-themed designs. Fish sketch in monochrome style. Marine life illustration vector.
Aquatic seaweed sketch. Underwater plant doodle. Marine flora, graphic texture, flat style, potential usage in aquatic themes or educational materials.
Four vibrant betta fish in bold shades of red, orange, blue, and green with elegant, flowing fins ideal for aquatic-themed art, decor, pet illustrations, and eye-catching digital designs.
Seamless set of marine shells and underwater patterns with outline style pattern. Abstract ocean elements and doodle shell designs create a blue background. Perfect for aquatic themes, wallpaper, or
Black and white line art of a mystus fish with detailed fins and spotted body. Perfect for coloring pages, tattoo art, or aquatic-themed design elements.
Colorful cartoon fish collection with different sea animals in a flat style. Bright and playful marine creatures set on a white background, perfect for children’s illustrations, aquatic-themed designs
Cartoon-style illustration of a platy fish with detailed fins and spotted body. Ideal for aquatic-themed designs, fish lovers, and educational content.
Cartoon-style illustration of a pleco fish with detailed fins and spotted body. Ideal for aquatic-themed designs, fish lovers, and educational content.
Marine seaweed doodle. Underwater plant design. Unique shape and texture of flora, flat style, potential for use in various aquatic themes or summer decorations.
Cartoon-style illustration of a mystus fish with detailed fins and spotted body. Ideal for aquatic-themed designs, fish lovers, and educational content.
Set of vector watercolor seaweed and corals isolated on white. Sea theme, design element, decoration of water entertainment places, parks, beaches.
Illustration of a fish with detailed fins and scales. Fish features include vibrant fins, textured scales, and a realistic appearance. Perfect for aquatic-themed designs. Marine life vector.
Vector template of mermaid theme birthday party invitation.
Chalk style seashell icon. Crayon seashell shape represents marine creature life. Undersea doodle in aquatic theme, flat design, suitable for summer decor and educational materials.
Black and white line art of a platy fish with detailed fins and spotted body. Perfect for coloring pages, tattoo art, or aquatic-themed design elements.
Black and white line art of a pleco fish with detailed fins and spotted body. Perfect for coloring pages, tattoo art, or aquatic-themed design elements.
A seamless pattern featuring repeating silhouettes of white sharks against a solid black background, ideal for aquatic themes.
Bring the calm of the sea to your projects with this seamless hand-drawn ocean waves pattern, perfect for beach-themed designs, fabrics, wallpapers, and creative digital artwork.
Illustration of a fish with yellow and gray stripes. Fish features include detailed scales and fins. Fish drawing on a white background. Fish art for aquatic themes. Marine life illustration vector.
Elegant white betta fish with flowing fins and lifelike detail, perfect for aquatic-themed designs, pet illustrations, or sophisticated nature-inspired artwork.
Illustration of a fish with detailed scales and fins. Fish art showcasing texture and detail. Fish design perfect for aquatic-themed projects or decor. Marine life illustration vector.
Teal blue abstract background with smooth wave curves. Ideal for calm, modern, or aquatic-themed design concepts.
Watercolor fish illustration with vibrant colors. Fish art showcasing detailed scales and fins. Perfect for aquatic-themed designs or fish-related projects. Marine life illustration vector.
Colorful illustration of an archer fish with bold markings and open mouth, set against a blue background. Great for aquatic themes, nature art, and educational use.
Clean black and white line drawing of a swai fish, perfect for coloring pages, educational use, or aquatic-themed designs.
Underwater Life Sea Ocean Beach Abstract Wave Background
Detailed black and white line drawing of a mahseer fish, perfect for coloring pages, fishing guides, educational materials, or aquatic-themed design projects.
Set of dolphin silhouettes in different playful poses. Simple black vector icons ideal for marine, wildlife, and aquatic-themed designs
Set of flat vector illustrations on the theme of marine inhabitants. Cute shark crab crayfish hermit jellyfish turtle seahorse sea stars and corals dolphin fish
Seaweed plant creates an underwater silhouette. Aquatic flora presents a marine shape. Flat doodle style with crayon texture, ideal for aquatic themes, educational materials, or summer designs.
Hand-drawn doodle seamless pattern of seashells, starfish, and seaweed in blue tones on a cream background. Perfect for coastal, beach, or aquatic-themed designs and home decor
Modern abstract fish logo design in purple gradient, circular yin yang style, creative vector icon for branding, business identity, aquatic themes, web, app, marketing, and professional company use.
Modern abstract fish logo design in purple gradient, circular yin yang style, creative vector icon for branding, business identity, aquatic themes, web, app, marketing, and professional company use.
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Iguana branding beach theme

Iguana branding beach theme
Iguana branding beach theme
Editable text Print ready
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Mythical mermaid t-shirt design

Mythical mermaid t-shirt design
Mythical mermaid t-shirt design
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Dynamic water splash graphic design PNG Design

Dynamic water splash graphic design PNG Design
Dynamic water splash graphic design PNG Design
Dynamic water splash graphic design PNG Design
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Blue jellyfish t-shirt design PNG Design

Blue jellyfish t-shirt design PNG Design
Blue jellyfish t-shirt design PNG Design
Blue jellyfish t-shirt design PNG Design
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Elegant navy blue water splash illustration design PNG Design

Elegant navy blue water splash illustration design PNG Design
Elegant navy blue water splash illustration design PNG Design
Elegant navy blue water splash illustration design PNG Design
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Dynamic water splash design PNG Design

Dynamic water splash design PNG Design
Dynamic water splash design PNG Design
Dynamic water splash design PNG Design
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Playful pink octopus design with splashes PNG Design

Playful pink octopus design with splashes PNG Design
Playful pink octopus design with splashes PNG Design
Playful pink octopus design with splashes PNG Design
Editable text Print ready
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for Merch

Summer vibes motivational t-shirt design

Summer vibes motivational t-shirt design
Summer vibes motivational t-shirt design
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Stylish water splash illustration PNG Design

Stylish water splash illustration PNG Design
Stylish water splash illustration PNG Design
Stylish water splash illustration PNG Design
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Playful fishing dad quote poster design PNG Design

Playful fishing dad quote poster design PNG Design
Playful fishing dad quote poster design PNG Design
Playful fishing dad quote poster design PNG Design
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Dynamic water splash illustration PNG Design

Dynamic water splash illustration PNG Design
Dynamic water splash illustration PNG Design
Dynamic water splash illustration PNG Design
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Playful dolphin illustration in circular design PNG Design

Playful dolphin illustration in circular design PNG Design
Playful dolphin illustration in circular design PNG Design
Playful dolphin illustration in circular design PNG Design
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Whimsical ufo aquarium design PNG Design

Whimsical ufo aquarium design PNG Design
Whimsical ufo aquarium design PNG Design
Whimsical ufo aquarium design PNG Design
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Playful fish illustration design PNG Design

Playful fish illustration design PNG Design
Playful fish illustration design PNG Design
Playful fish illustration design PNG Design

Penguin Illustration Set

Penguin Illustration Set
Penguin Illustration Set