Diamond pattern (colour 6) #2280
Yellow CC 0From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
More Textures
Tileable Wood #655
Wood CC BY-SA 3.0Not so subtle. These tileable wood patterns are very useful.
Source Elemis
Rice Paper #338
Paper CC BY-SA 3.0Scanned some rice paper and tiled it up for you. Enjoy.
Source Atle Mo
Inflicted #117
Grid CC BY-SA 3.0Dark squares with some virus-looking dots in the grid.
Source Hugo Loning
White Plaster@2X #369
Wall CC BY-SA 3.0Sweet and subtle white plaster with hints of noise and grunge.
Source Phil Maurer
Wavy background #2017
Green CC 0A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
Decorative divider 218 #2232
Dark CC 0Remixed from a drawing in 'Maidenhood; or, the Verge of the Stream', Laura Jewry, 1876.
Source Firkin
Mooning #1140
Gray CC BY-SA 3.0The classic subtle pattern. Sort of wall/brick looking. Or moon-looking?
Source Joel Klein
Background pattern 228 #2308
Colorful CC 0Non-seamless pattern drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
Blue & Fissure & Cube #1702
Wall CC 0Background Wall, Art Abstract, Blue Well & CC0 texture.
Source Ractapopulous
Colourful background #2008
Colorful CC 0Made by distorting a simple pattern using the 'sin waves' plugin for Paint.net and vectorising in Vector Magic
Source Firkin
Prismatic Groovy Concentric Background No Black@2X #452
Noise CC 0Prismatic Groovy Concentric Background No Black
Source GDJ
Background pattern 220 (colour) #2359
Pink CC 0Colour version of the original seamless pattern.
Source Firkin
Connected@2X #349
Light CC BY-SA 3.0White circles connecting on a light gray background.
Source Mark Collins
Background Patterns - Ebony #249
Fabric CC 0If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
Prismatic Polyskelion Pattern No Background@2X #800
Light CC 0Prismatic Polyskelion Pattern No Background
Source GDJ
Background pattern 245 (colour 5) #2188
Green CC 0This was formed by distorting an image of a background on Pixabay.
Source Firkin
Dirty #1371
Unknow CC 0Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Black Linen 2 #103
Dark CC BY-SA 3.0A new take on the black linen pattern. Softer this time.
Source Atle Mo
Background pattern 261 #2076
Dark CC 0Inspired by a pattern found in 'A General History of Hampshire, or the County of Southampton, including the Isle of Wight', Bernard Woodwood, 1861
Source Firkin
Knotty wooden board #2564
Wood CC 0A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
"Colorful Stripes", Diagonally Striped Background #903
Stripes CC BY-SA 3.0This background pattern contains worn out colorful stripes as a texture.
Source V. Hartikainen