"Seamless Bark", Website Background. #879
Wood CC BY-SA 3.0This background pattern contains a seamless texture of bark. It's not very realistic, but I think it looks quite nice.
Source V. Hartikainen
More Textures
Diamond pattern (colour 9) #2269
Fabric CC 0From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Brushed Alum Dark@2X #66
Dark CC BY-SA 3.0Because I love dark patterns, here is Brushed Alum in a dark coating.
Source Tim Ward
Low Contrast Linen #863
Dark CC BY-SA 3.0A smooth mid-tone gray, or low contrast if you will, linen pattern.
Source Jordan Pittman
Floral pattern 12 #1766
Dark CC 0Derived from an image that was uploaded to Pixabay by pugmom40
Source Firkin
Argyle #643
Dark CC BY-SA 3.0Classy golf-pants pattern, or crossed stripes if you will.
Source Will Monson
Grey Washed Wall #1128
Wall CC BY-SA 3.0This is a semi-dark pattern, sort of linen-y.
Source Sagive SEO
Prismatic Abstract Background Design #403
Noise CC 0Prismatic Abstract Background Design
Source GDJ
Cardboard #278
Paper CC BY-SA 3.0A good starting point for a cardboard pattern. This would work well in a variety of colors.
Source Atle Mo
Background pattern 259 (colour 4) #2131
Green CC 0Remixed from a design seen on Pixabay. The basic tile can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Prismatic Curved Diamond Pattern 4 No Background #541
Diamond CC 0Prismatic Curved Diamond Pattern 4 No Background
Source GDJ
Hexellence #705
Light CC BY-SA 3.0Detailed but still subtle and quite original. Lovely gray shades.
Source Kim Ruddock
Colorful Stripes Background #992
Stripes CC BY-SA 3.0Free tiled background with colorful stripes and white splatter.
Source V. Hartikainen
Dirty #1371
Unknow CC 0Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Weave #733
Wall CC BY-SA 3.0Medium gray pattern with small strokes to give a weave effect.
Source Catherine
Prismatic Curved Diamond Pattern 5 No Background@2X #544
Diamond CC 0Prismatic Curved Diamond Pattern 5 No Background
Source GDJ
Background pattern 9 (colour) #214
Noise CC 0Colour version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin