Beautiful dark noise pattern with some dust and grunge.
Source Vincent Klaiber
An abstract texture of water. It's not perfect, but will do. You may download if you like it.
Source V. Hartikainen
This could be a hippy vintage wallpaper.
Source Tileable Patterns
Love me some light mesh on a Monday. Sharp.
Source Wilmotte Bastien
Colour version that is close to the original drawing uploaded to Pixabay by pencilparker.
Source Firkin
Bright gray tones with a hint of some metal surface.
Source Hendrik Lammers
Not the most creative name, but it’s a good all-purpose light background.
Source Dmitry
Zero CC tileable grass texture, photographed and made by me. CC0
Source Sojan Janso
A black tile-able background with paper-like texture.
Source V. Hartikainen
Remixed from a drawing in 'A Girl in Ten Thousand', Elizabeth Meade, 1896.
Source Firkin
A gray background pattern with a texture of textile. Suits perfectly for web design.
Source V. Hartikainen
Like the name suggests, this background image consists of a pattern of dark bricks. It may be an option for you, if you are looking for something that looks like a brick wall for use as a background on web pages. It's not a masterpiece, but looks pretty nice when is tiled.
Source V. Hartikainen
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
A pale olive green background with a seamless texture.
Source V. Hartikainen
Super detailed 16×16 tile that forms a beautiful pattern of straws.
Source Pavel
A large (588x375px) sand-colored pattern for your ever-growing collection. Shrink at will.
Source Alex Tapein
Inspired by the B&O Play, I had to make this pattern.
Source Atle Mo
Prismatic Curved Diamond Pattern 5 No Background
Source GDJ
Lovely pattern with splattered vintage speckles.
Source David Pomfret
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Paper pattern with small dust particles and 45-degree strokes.
Source Atle Mo