A seamless pattern based on a tile that can be achieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Dark Tile-able Grunge Texture. I think this texture can be classified as grunge. It's free and seamless, as always.
Source V. Hartikainen
This one is so simple, yet so good. And you know it. Has to be in the collection.
Source Gluszczenko
A beautiful dark padded pattern, like an old classic sofa.
Source Chris Baldie
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
Inspired by this, I came up with this pattern. Madness!
Source Atle Mo
Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
A white version of the very popular linen pattern.
Source Ant Ekşiler
Dark, square, clean and tidy. What more can you ask for?
Source Jaromír Kavan
The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Orange-red pattern for tiled backgrounds.
Source V. Hartikainen
A free seamless background image with a texture of dark red "canvas". It should look very nice on web sites.
Source V. Hartikainen
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
A seamless pattern drawn originally in Paint.net by distorting a slice of background pattern 116 and copying the resulting triangle numerous times.
Source Firkin
Abstract Geometric Monochrome Pattern Prismatic No Background
Source GDJ
A light brushed aluminum pattern for your pleasure.
Source Tim Ward
A topographic map like this has actually been requested a few times, so here you go!
Source Sam Feyaerts
This background pattern contains a texture of yellow wood planks. I think it looks quite original.
Source V. Hartikainen
A smooth mid-tone gray, or low contrast if you will, linen pattern.
Source Jordan Pittman
Basket Fibers, Basket Texture, Braid Background style CC0 texture.
Source 1A-Photoshop
Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
A large pattern with funky shapes and form. An original. Sort of origami-ish.
Source Luuk van Baars
Greyscale version of a pattern that came out of playing with the 'slinky' plug-in for Paint.net
Source Firkin
In the spirit of WWDC 2011, here is a dark iOS inspired linen pattern.
Source Atle Mo
That’s what it is, a dark dot. Or sort of carbon looking.
Source Tsvetelin Nikolov
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin