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O Backgrounds | Page 17

Browse 1,376+ O Backgrounds to download free for any screen

We keep 1,376 O Backgrounds on this page, and the list is still growing. It is a broad set, assembled to suit different tastes. Works in any app that accepts a still background image. Downloads are free and instant — there is nothing to sign up for.

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  • A small astronaut hangs from a glowing rope in space. — O Background
    A small astronaut hangs from a glowing rope in space.
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  • A colorful flat illustration of science tools and symbols for educational purposes. — O Background
    A colorful flat illustration of science tools and symbols for educational purposes.
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  • Close-up of a scientific microscope in a lab setting. — O Background
    Close-up of a scientific microscope in a lab setting.
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  • Two anime characters fighting with lightning and energy blasts. — O Background
    Two anime characters fighting with lightning and energy blasts.
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  • A water droplet impacts a dark surface creating glowing ripples and suspended droplets. — O Background
    A water droplet impacts a dark surface creating glowing ripples and suspended droplets.
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  • An office workspace with two computer monitors and a cluttered desk under window light. — O Background
    An office workspace with two computer monitors and a cluttered desk under window light.
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  • Three colleagues working together in a bright modern office with glass walls and colorful furniture. — O Background
    Three colleagues working together in a bright modern office with glass walls and colorful furniture.
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  • Two pink flamingos among glowing tropical leaves on a black background. — O Background
    Two pink flamingos among glowing tropical leaves on a black background.
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  • A human hand with open fingers and visible palm lines against a white background. — O Background
    A human hand with open fingers and visible palm lines against a white background.
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  • Glowing virus particles with molecular structures floating in a gradient background. — O Background
    Glowing virus particles with molecular structures floating in a gradient background.
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  • Anime characters fighting with fire and electricity in a city at night. — O Background
    Anime characters fighting with fire and electricity in a city at night.
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  • Two people holding hands on a mountain trail at sunset. — O Background
    Two people holding hands on a mountain trail at sunset.
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  • Three celestial bodies orbiting in space with a glowing red planet inside a blue one. — O Background
    Three celestial bodies orbiting in space with a glowing red planet inside a blue one.
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  • Spiderman reclines on a web hammock holding a phone against a black background. — O Background
    Spiderman reclines on a web hammock holding a phone against a black background.
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  • Children in tie-dye shirts look up at a giant Earth globe in a science museum. — O Background
    Children in tie-dye shirts look up at a giant Earth globe in a science museum.
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  • Modern office with white tables black chairs and whiteboards covered in sticky notes. — O Background
    Modern office with white tables black chairs and whiteboards covered in sticky notes.
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  • Blue brain inside head silhouette being scanned by MRI machine with floating shapes. — O Background
    Blue brain inside head silhouette being scanned by MRI machine with floating shapes.
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  • Glowing golden circuit board shaped like a brain with lit nodes on dark background. — O Background
    Glowing golden circuit board shaped like a brain with lit nodes on dark background.
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  • Glowing green DNA strand surrounded by chemical formulas in a dark digital space. — O Background
    Glowing green DNA strand surrounded by chemical formulas in a dark digital space.
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  • A hand making a gentle gesture with fingers extended. — O Background
    A hand making a gentle gesture with fingers extended.
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  • Two women laughing while working together in a modern office. — O Background
    Two women laughing while working together in a modern office.
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  • Diagonal streaks of blue and purple light radiate from a dark center. — O Background
    Diagonal streaks of blue and purple light radiate from a dark center.
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  • Man taking a photo with smartphone near ring light at UOB event booth. — O Background
    Man taking a photo with smartphone near ring light at UOB event booth.
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  • Starship flying near a planet and moon in space — O Background
    Starship flying near a planet and moon in space
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  • A colorful swirling bubble against a black background — O Background
    A colorful swirling bubble against a black background
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  • Chibi anime characters in school uniforms with varied expressions on a pink sparkly background. — O Background
    Chibi anime characters in school uniforms with varied expressions on a pink sparkly background.
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  • Silhouette of a person standing under glowing green lightning in a starry night sky. — O Background
    Silhouette of a person standing under glowing green lightning in a starry night sky.
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  • Conference room with whiteboard sketches and stacks of papers on a wooden table. — O Background
    Conference room with whiteboard sketches and stacks of papers on a wooden table.
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  • Anime hero with teal hair and glasses unleashing electric energy in battle. — O Background
    Anime hero with teal hair and glasses unleashing electric energy in battle.
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  • Person applying cream to irritated skin on hand — O Background
    Person applying cream to irritated skin on hand
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  • My Hero Academia anime characters in action poses with electric effects. — O Background
    My Hero Academia anime characters in action poses with electric effects.
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  • Neon blue triangle framing cosmic planets and nebulae in deep space. — O Background
    Neon blue triangle framing cosmic planets and nebulae in deep space.
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  • A hand against a textured wall with soft natural lighting. — O Background
    A hand against a textured wall with soft natural lighting.
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  • Modern open-plan office with white desks gray chairs and large windows showing city skyline. — O Background
    Modern open-plan office with white desks gray chairs and large windows showing city skyline.
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  • An adult hand holding a newborn baby's tiny hand with soft focus background. — O Background
    An adult hand holding a newborn baby's tiny hand with soft focus background.
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  • Futuristic blue glowing circular interface on black background — O Background
    Futuristic blue glowing circular interface on black background
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  • Two hands reaching toward each other against a plain gray background. — O Background
    Two hands reaching toward each other against a plain gray background.
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  • Three smartphones showing solid blue green and red screens side by side. — O Background
    Three smartphones showing solid blue green and red screens side by side.
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  • Person holding their wrist in a soothing gesture near a window. — O Background
    Person holding their wrist in a soothing gesture near a window.
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  • Anime heroes in blue uniforms posing together with bright expressions. — O Background
    Anime heroes in blue uniforms posing together with bright expressions.
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  • Venom comic character with glowing eyes and sharp teeth on black background — O Background
    Venom comic character with glowing eyes and sharp teeth on black background
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  • Hand making an okay sign against a teal background — O Background
    Hand making an okay sign against a teal background
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  • Glowing rainbow world map on black background — O Background
    Glowing rainbow world map on black background
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  • Bright modern office with turquoise walls white desks and hanging lamps. — O Background
    Bright modern office with turquoise walls white desks and hanging lamps.
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  • Anime characters in intense battle scenes with dramatic expressions and comic panels. — O Background
    Anime characters in intense battle scenes with dramatic expressions and comic panels.
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  • Modern home office with blue walls wooden desk and city view. — O Background
    Modern home office with blue walls wooden desk and city view.
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  • A colorful chrysanthemum flower with rainbow petals against a black background. — O Background
    A colorful chrysanthemum flower with rainbow petals against a black background.
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  • Anime heroes in futuristic city with determined expressions. — O Background
    Anime heroes in futuristic city with determined expressions.
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  • Modern office lounge with round table colorful chairs and large shelving units near window with potted tree. — O Background
    Modern office lounge with round table colorful chairs and large shelving units near window with potted tree.
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  • An open-plan office with desks computers and chairs under overhead lights. — O Background
    An open-plan office with desks computers and chairs under overhead lights.
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  • Man working at home desk with coffee plants and digital tools — O Background
    Man working at home desk with coffee plants and digital tools
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  • Anime heroes in action poses on city street with buildings and railings. — O Background
    Anime heroes in action poses on city street with buildings and railings.
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  • Minimalist home office with white desk, wooden cabinets, framed art, and gray rug. — O Background
    Minimalist home office with white desk, wooden cabinets, framed art, and gray rug.
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  • Group of anime superheroes in dynamic action poses with bright yellow background. — O Background
    Group of anime superheroes in dynamic action poses with bright yellow background.
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  • Man working at outdoor desk in modern backyard with hot tub and green lawn. — O Background
    Man working at outdoor desk in modern backyard with hot tub and green lawn.
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  • A modern wooden desk with chair computer and abstract art in a bright attic room. — O Background
    A modern wooden desk with chair computer and abstract art in a bright attic room.
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  • Anime heroes in school uniforms sprinting with determined expressions. — O Background
    Anime heroes in school uniforms sprinting with determined expressions.
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  • Anime heroes in mid-air action pose over a city with fiery effects and a blue robot face below. — O Background
    Anime heroes in mid-air action pose over a city with fiery effects and a blue robot face below.
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  • Modern conference room with long white table black chairs and large windows. — O Background
    Modern conference room with long white table black chairs and large windows.
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  • Three colleagues working and chatting in a modern open-plan office with city views. — O Background
    Three colleagues working and chatting in a modern open-plan office with city views.
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Showing 961–1020 of 1,376 wallpapers

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Frequently asked questions

Is the full-size version of these O Backgrounds free too?

Completely free. Skip the sign-up; it is not needed. The large sizes are not held back behind a paywall.

What pairs well with O Backgrounds?

Try yellow, pink, superman, black next. Each keeps its own roster.

Which screen shapes do these O Backgrounds suit?

Both shapes are here. 35 run wide; 25 run tall. Filter by eye — the tall ones suit phones, the wide ones desktops.

How big is this collection of O Backgrounds?

We are holding 1,376 O Backgrounds at present. More are added on a rolling basis. All free, no account, no watermark.