Dark Brown Leather Texture, Seamless Tile #1092
 Leather  CC BY-SA 3.0

The texture of this background image has some similarities with leather, and it's colored in a dark brown color. So, if you are looking for a dark brown background image for your website, this may be an option for you.

Source V. Hartikainen

 More Textures
Floral pattern 6 #2461
 Fabric  CC 0

A pattern formed from a photograph of a 16th century ceramic tile.

Source Firkin

Prismatic Geometric Pattern Variation 2 With [email protected] #472
 Noise  CC 0

Prismatic Geometric Pattern Variation 2 With Background

Source GDJ

Sativa #1306
 Dark  CC BY-SA 3.0

Honestly, who does not like a little pipe and mustache?

Source Luca Errico

Checkered Light Emboss #280
 Grid  CC BY-SA 3.0

Sort of like the Photoshop transparent background, but better!

Source Alex Parker

[email protected] #776
 Grid  CC BY-SA 3.0

Small gradient crosses inside 45-degree boxes, or bigger crosses if you will.

Source Wassim

Blue Wallpaper For Websites #910
 Stripes  CC BY-SA 3.0

A blue background wallpaper for websites. It has a seamless texture with vertical stripes. It looks quite nice not only when using as a tiled background on websites, but also on computer desktops.

Source V. Hartikainen

Decorative divider 231 #2149
 Dark  CC 0

From a design found in 'History of the Virginia Company of London; with letters to and from the first Colony, never before printed', Edward Neill, 1869.

Source Firkin

Prismatic Abstract Geometric Background 4 No Black #441
 Dark  CC 0

Prismatic Abstract Geometric Background 4 No Black

Source GDJ

Background pattern 314 (colour 4) #1836
 Blue  CC 0

The square tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i

Source Firkin

Prismatic Groovy Concentric Background 5 No [email protected] #468
 Dark  CC 0

Prismatic Groovy Concentric Background 5 No Black

Source GDJ

White [email protected] #369
 Wall  CC BY-SA 3.0

Sweet and subtle white plaster with hints of noise and grunge.

Source Phil Maurer

Background pattern 236 #2249
 Dark  CC 0

Seamless pattern the basic tile for which can be had by selecting the rectangle in Inkscape and using shift+alt+i.

Source Firkin

Melty & Red #1665
 Metal  CC 0

Misc. CC0 License.

Source Unknow

Pattern & Iron Net #1618
 Wall  CC 0

Fence. CC0 License.

Source Unknow

Seamless Green Curtain Background #1333
 Green  CC BY-SA 3.0

A free seamless background image with abstract texture of green "curtain".

Source V. Hartikainen

Prismatic Dots Background 5 #509
 Noise  CC 0

Prismatic Dots Background 5

Source GDJ

Part of Bayeux Tapestry 4 #2446
 Noise  CC 0

From a drawing in 'Les Chroniqueurs de l'Histoire de France depuis les origines jusqu'au XVIe siècle', Henriette Witt, 1884.

Source Firkin

Cubes #133
 Light  CC BY-SA 3.0

This reminds me of Game Cube. A nice light 3D cube pattern.

Source Sander Ottens

Laminate Wall #1274
 Wall  CC 0

Zero CC tileable Laminate wood texture, photographed and made by me. CC0

Source Sojan Janso

[email protected] #754
 Light  CC BY-SA 3.0

This is so subtle you need to bring your magnifier!

Source Carlos Valdez

birdface seamless pattern #2470
 Unknow  CC 0

The image depicts a seamless pattern made using a bird's face.

Source Yamachem

Decorative divider 246 #2078
 Dark  CC 0

From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.

Source Firkin

Red Gemstone Tiles #1223
 Red  CC BY-SA 3.0

This tiled background comes in red and consists of tiles that look like gemstones. It is more for blogs or social profiles, I think.

Source V. Hartikainen

Leaftrim #1683
 Paper  CC 0

Paper-Wallpaper. CC0 License.

Source Unknow

Fabric Pattern with Stitch Holes #1163
 Fabric  CC BY-SA 3.0

A grayscale fabric pattern with vertical lines of stitch holes.

Source V. Hartikainen

Leafy pattern 12 (colour) #1762
 Red  CC 0

From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.

Source Firkin

Light Grey Floral Motif #344
 Wall  CC BY-SA 3.0

Lovely light gray floral motif with some subtle shades.

Source GraphicsWall

Background pattern 229 #2305
 Colorful  CC 0

To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.

Source Firkin