Shapes pattern #2409
Brown CC 0A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
More Textures
Confectionary #1342
Light CC BY-SA 3.0This could be a hippy vintage wallpaper.
Source Tileable Patterns
Prismatic Rounded Squares Grid 3 No Background #489
Noise CC 0Prismatic Rounded Squares Grid 3 No Background
Source GDJ
Seamless Textured Paper Background #1075
Paper CC BY-SA 3.0A seamless textured paper for backgrounds. Colored in pale orange hues.
Source V. Hartikainen
Paper 1 #15
Paper CC BY-SA 3.0A slightly grainy paper pattern with small horizontal and vertical strokes.
Source Atle Mo
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
Snow@2X #628
Wall CC BY-SA 3.0Real snow that tiles, not easy. This is not perfect, but an attempt.
Source Atle Mo
Leafy design 18 #1788
Dark CC 0From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
"Dark Red Canvas", Seamless Web Texture@2X #1222
Red CC BY-SA 3.0A free seamless background image with a texture of dark red "canvas". It should look very nice on web sites.
Source V. Hartikainen
Tessellation 16 (colour 2) #2214
Colorful CC 0The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Pyramid #895
Light CC BY-SA 3.0Could remind you a bit of those squares in Super Mario Bros, yeh?
Source Jeff Wall
birdface seamless pattern #2470
Unknow CC 0The image depicts a seamless pattern made using a bird's face.
Source Yamachem
Inflicted@2X #118
Grid CC BY-SA 3.0Dark squares with some virus-looking dots in the grid.
Source Hugo Loning
Background pattern 203 #2486
Brown CC 0A seamless pattern formed from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin