Zig-zag pattern 6 #2413
Grid CC 0A seamless pattern based on a square tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
More Textures
Diamond pattern (colour 2) #2284
Green CC 0From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
P5@2X #1114
Light CC BY-SA 3.0Number five from the same submitter, makes my job easy.
Source Dima Shiper
Escheresque Dark #1064
Dark CC BY-SA 3.0A comeback for you: the popular Escheresque, now in black.
Source Patten
Mix Stone #1263
Stone CC 0Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
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
Felt #300
Wall CC BY-SA 3.0Got some felt in my mailbox today, so I scanned it for you to use.
Source Atle Mo
Small Crackle Bright@2X #353
Light CC BY-SA 3.0Light gray pattern with an almost wall tile-like appearance.
Source Markus Tinner
Background pattern 339 (colour 2) #1707
Green CC 0The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Background Patterns - Citrone #248
Fabric CC BY-SA 3.0If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
The Black Mamba #769
Dark CC BY-SA 3.0Super dark, crisp and detailed. And a Kill Bill reference.
Source Badhon Ebrahim
Wood Pattern@2X #371
Wood CC BY-SA 3.0One of the few full-color patterns here, but this one was just too good to pass up.
Source Alexey Usoltsev
Abstract Paper-Like Background With Colorful Stains #1226
Yellow CC BY-SA 3.0An abstract pale yellow paper-like background with stains colored in yellow and green.
Source V. Hartikainen
Prismatic Groovy Concentric Background No Black #451
Noise CC 0Prismatic Groovy Concentric Background No Black
Source GDJ
Leafy design 18 #1788
Dark CC 0From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Abstract Arbitrary Geometric Background@2X #498
Noise CC 0Abstract Arbitrary Geometric Background derived from an image on Pixabay.
Source GDJ
Cube Well & Blue #1699
Wall CC 0Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
Corrugation@2X #766
Light CC BY-SA 3.0The act or state of corrugating or of being corrugated, a wrinkle; fold; furrow; ridge.
Source Anna Litvinuk
Background pattern 6 #226
Noise CC 0A pattern derived from part of a fractal rendering in Paint.net.
Source Firkin
School #1318
Yellow CC BY-SA 3.0Spice up your next school project with this icon background.
Source Swetha