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O Backgrounds | Page 11

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.

Cracked golden zero symbol on black background — O Background
Rustic Letter O
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  • Scientist in lab coat holding tablet and touching glowing molecules. — O Background
    Scientist in lab coat holding tablet and touching glowing molecules.
    o
  • Diverse crowd facing a large Earth globe with DNA symbols on a red background. — O Background
    Diverse crowd facing a large Earth globe with DNA symbols on a red background.
    o
  • Scientists explore a glowing coral-like structure with giant hands reaching toward them. — O Background
    Scientists explore a glowing coral-like structure with giant hands reaching toward them.
    o
  • The word science made from science-themed icons like DNA and moon. — O Background
    The word science made from science-themed icons like DNA and moon.
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  • Scientist examining a sample under a microscope in a book-filled lab. — O Background
    Scientist examining a sample under a microscope in a book-filled lab.
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  • A thermometer pointing to high temperatures against a bright sunburst background. — O Background
    A thermometer pointing to high temperatures against a bright sunburst background.
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  • Microscope examining a green specimen on a glass slide in a lab. — O Background
    Microscope examining a green specimen on a glass slide in a lab.
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  • Silhouettes of heads with colorful abstract brains representing diverse thoughts and concepts. — O Background
    Silhouettes of heads with colorful abstract brains representing diverse thoughts and concepts.
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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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  • Cartoon scientist in lab coat smiling behind bubbling beakers in a circular 'Science Asylum' logo. — O Background
    Cartoon scientist in lab coat smiling behind bubbling beakers in a circular 'Science Asylum' logo.
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  • A pink carnation growing from a bullet casing surrounded by spent ammunition. — O Background
    A pink carnation growing from a bullet casing surrounded by spent ammunition.
    o
  • Two people running in the rain on a city street. — O Background
    Two people running in the rain on a city street.
    o
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  • Two rifle cartridges on a gray background, one large and one small. — O Background
    Two rifle cartridges on a gray background, one large and one small.
    o
  • A silver bullet with 'Lone Ranger 45' stamped on the base. — O Background
    A silver bullet with 'Lone Ranger 45' stamped on the base.
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  • Various types of bullets and shotgun shells on a cracked white surface. — O Background
    Various types of bullets and shotgun shells on a cracked white surface.
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  • Six bullets with brass casings and copper tips on a white background. — O Background
    Six bullets with brass casings and copper tips on a white background.
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  • Scattered brass bullet casings and copper bullets on white background. — O Background
    Scattered brass bullet casings and copper bullets on white background.
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  • Copper bullet leaving glowing vapor trail against black background — O Background
    Copper bullet leaving glowing vapor trail against black background
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  • A person's hand holding a brass bullet in an urban setting. — O Background
    A person's hand holding a brass bullet in an urban setting.
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  • Arrows and bullets arranged side by side on a wooden surface. — O Background
    Arrows and bullets arranged side by side on a wooden surface.
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  • Brass bullet casing on black background — O Background
    Brass bullet casing on black background
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  • Scattered rifle cartridges on a wooden surface in shallow focus. — O Background
    Scattered rifle cartridges on a wooden surface in shallow focus.
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  • A copper bullet flying through air with motion blur. — O Background
    A copper bullet flying through air with motion blur.
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  • Four rifle cartridges and spent bullet casings on a white surface. — O Background
    Four rifle cartridges and spent bullet casings on a white surface.
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  • Hand holding worn military bullets with rusted casings and red bands. — O Background
    Hand holding worn military bullets with rusted casings and red bands.
    o
  • Rows of copper-jacketed bullets in sharp focus with blurred background. — O Background
    Rows of copper-jacketed bullets in sharp focus with blurred background.
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  • Brass rifle cartridges with green tips in cardboard boxes. — O Background
    Brass rifle cartridges with green tips in cardboard boxes.
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  • Rows of brass rifle cartridges with copper tips on dark textured surface. — O Background
    Rows of brass rifle cartridges with copper tips on dark textured surface.
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  • Close-up of scattered brass and copper bullets in a pile. — O Background
    Close-up of scattered brass and copper bullets in a pile.
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  • Two crossed bullets in black and white line art. — O Background
    Two crossed bullets in black and white line art.
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  • Four types of military ammunition with labels against a blue background. — O Background
    Four types of military ammunition with labels against a blue background.
    o
  • Close-up of scattered brass bullet casings with metallic sheen. — O Background
    Close-up of scattered brass bullet casings with metallic sheen.
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  • Close-up of black rifle cartridges with copper tips piled together. — O Background
    Close-up of black rifle cartridges with copper tips piled together.
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  • Brass bullets scattered on wooden surface with one standing upright. — O Background
    Brass bullets scattered on wooden surface with one standing upright.
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  • Man holding a green-tipped bullet outdoors in bright sunlight. — O Background
    Man holding a green-tipped bullet outdoors in bright sunlight.
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  • A glass vial with white powder and a wooden stick suspended by twine on a dark surface. — O Background
    A glass vial with white powder and a wooden stick suspended by twine on a dark surface.
    o
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  • Silver revolver and brass bullets on a rocky surface in bright sunlight. — O Background
    Silver revolver and brass bullets on a rocky surface in bright sunlight.
    o
  • Collection of illustrated bullets in gold and black silhouettes arranged in rows. — O Background
    Collection of illustrated bullets in gold and black silhouettes arranged in rows.
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  • Three bullets of varying sizes displayed in a row on white background. — O Background
    Three bullets of varying sizes displayed in a row on white background.
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  • Brass rifle bullets scattered on a white surface with shallow depth of field. — O Background
    Brass rifle bullets scattered on a white surface with shallow depth of field.
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  • Brass bullet pen with copper tip on white background — O Background
    Brass bullet pen with copper tip on white background
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  • Six different types of bullets lined up on a white background. — O Background
    Six different types of bullets lined up on a white background.
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  • Rows of copper-jacketed bullets aligned diagonally against a blue backdrop. — O Background
    Rows of copper-jacketed bullets aligned diagonally against a blue backdrop.
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  • A brass bullet on a grid background — O Background
    A brass bullet on a grid background
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  • Several brass bullets lying scattered on a white surface. — O Background
    Several brass bullets lying scattered on a white surface.
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  • Person sorting brass bullet casings into a white bowl in a workshop. — O Background
    Person sorting brass bullet casings into a white bowl in a workshop.
    o
  • Two people in puzzle pieces connecting under giant hands — O Background
    Two people in puzzle pieces connecting under giant hands
    o
  • Collection of shotgun shells and rifle cartridges on a granite countertop. — O Background
    Collection of shotgun shells and rifle cartridges on a granite countertop.
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  • Hand holding a brass bullet with a box of ammo nearby. — O Background
    Hand holding a brass bullet with a box of ammo nearby.
    o
  • Three people on a rocky cliff overlooking a scenic bay with boats and green hills. — O Background
    Three people on a rocky cliff overlooking a scenic bay with boats and green hills.
    o
  • Actors in elaborate costumes leap energetically on a theatrical stage with ornate woodwork. — O Background
    Actors in elaborate costumes leap energetically on a theatrical stage with ornate woodwork.
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  • Two lounge chairs under an umbrella on a tropical beach with palm trees and turquoise water. — O Background
    Two lounge chairs under an umbrella on a tropical beach with palm trees and turquoise water.
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  • Stylized illustration of diverse people silhouettes with speech bubbles. — O Background
    Stylized illustration of diverse people silhouettes with speech bubbles.
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  • Two people watering a plant inside a graduation silhouette while shaking hands. — O Background
    Two people watering a plant inside a graduation silhouette while shaking hands.
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  • Two people in beach chairs enjoying sunset drinks on a sandy shore. — O Background
    Two people in beach chairs enjoying sunset drinks on a sandy shore.
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  • A man working from home with a cat on his desk and floating windows showing his remote team. — O Background
    A man working from home with a cat on his desk and floating windows showing his remote team.
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  • Abstract art with stylized human figures in bright colors and geometric shapes. — O Background
    Abstract art with stylized human figures in bright colors and geometric shapes.
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  • Children playing on a paddleboard in a sunny lake with trees in the background. — O Background
    Children playing on a paddleboard in a sunny lake with trees in the background.
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  • Tropical beach with palm trees and lounge chairs under clear blue skies. — O Background
    Tropical beach with palm trees and lounge chairs under clear blue skies.
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  • Team of professionals analyzing data and using digital tools in a modern office setting. — O Background
    Team of professionals analyzing data and using digital tools in a modern office setting.
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Showing 601–660 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. 53 run wide; 7 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.