Seamless Cardboard Texture #1212
Cardboard CC BY-SA 3.0A free background image with a seamless texture of cardboard. This texture of cardboard looks quite realistic, especially when is actually tiled.
Source V. Hartikainen
More Textures
Background Patterns - Bronze #246
Fabric CC 0If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
Repeating Web Background (Dark Brown) #1079
Metal CC BY-SA 3.0This one has rusty dark brown texture.
Source V. Hartikainen
Bamboo Background Pattern #1330
Green CC BY-SA 3.0This background pattern looks like bamboo to me. Feel free to download it for your website (for your blog perhaps?).
Source V. Hartikainen
Tessellation 16 #2215
Yellow CC 0The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Vichy@2X #72
Light CC BY-SA 3.0This one could be the shirt of a golf player. Angled lines in different thicknesses.
Source Olivier Pineda
Green Wall #1268
Wall CC 0Zero CC bark from fur tree tileable texture, photographed and made by me. CC0
Source Sojan Janso
Decorative divider 298 #1744
Dark CC 0From a drawing in 'Bond Slaves. The story of a struggle.', Isabella Varley, 1893.
Source Firkin
Decorative divider 221 #2224
Dark CC 0Remixed from a drawing in 'Maidenhood; or, the Verge of the Stream', Laura Jewry, 1876.
Source Firkin
Geometric pattern 6 #1930
Dark CC 0To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Beige Paper@2X #84
Paper CC BY-SA 3.0This was submitted in a beige color, hence the name. Now it’s a gray paper pattern.
Source Konstantin Ivanov
Background pattern 24 #198
Dark CC 0The starting point for this was a texture drawn with the 'Radial Colors' plug-in in Paint.net.
Source Firkin
Patterned metal plate 7 #2556
Metal CC 0From an image on opengameart.org shared by rubberduck.
Source Firkin
Background pattern 8 (greyscale) #210
Dark CC 0Greyscale version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
Leafy design 18 #1788
Dark CC 0From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Reticular Tissue #763
Light CC BY-SA 3.0The act or state of corrugating or of being corrugated, a wrinkle; fold; furrow; ridge.
Source Anna Litvinuk
Gray Floral@2X #756
Gray CC BY-SA 3.0Floral patterns might not be the hottest thing right now, but you never know when you need it!
Source Lauren
Ribbon pattern 2 (version 2) #2039
Colorful CC 0The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Overlapped wood 2 #2568
Wood CC 0A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
"Black Chains", Gloomy Background #1082
Metal CC BY-SA 3.0A repeating gloomy background image. This one consists of a pattern of black chains layered on top of a dark textured background.
Source V. Hartikainen
Dark Mosaic@2X #122
Dark CC BY-SA 3.0Small dots with minor circles spread across to form a nice mosaic.
Source John Burks
Background pattern green #2027
Green CC 0Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857. The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Nasty Fabric@2X #1009
Gray CC BY-SA 3.0Nasty or not, it’s a nice pattern that tiles. Like they all do.
Source Badhon Ebrahim
Floral pattern 6 (colour 6) #2455
Fabric CC 0Alternative colour scheme for the original floral pattern.
Source Firkin