Hexagonal dark 3D pattern. What more can you ask for?
Source Norbert Levajsics
Nicely crafted paper pattern, although a bit on the large side (500x593px).
Source Blaq Annabiosis
This was formed by distorting an image of a background on Pixabay.
Source Firkin
In the spirit of WWDC 2011, here is a dark iOS inspired linen pattern.
Source Atle Mo
Prismatic Curved Diamond Pattern 3 No Background
Source GDJ
Dead simple but beautiful horizontal line pattern.
Source Fabian Schultz
Abstract Geometric Monochrome Pattern Prismatic No Background
Source GDJ
Sweet and subtle white plaster with hints of noise and grunge.
Source Phil Maurer
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
A 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
This one is amazing, truly original. Go use it!
Source Viahorizon
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Medium gray pattern with small strokes to give a weave effect.
Source Catherine
Cubes as far as your eyes can see. You know, because they tile.
Source Jan Meeus
Prismatic Geometric Tessellation Pattern 3 No Background
Source GDJ
Same as Silver Scales, but in black. Turn your site into a dragon with this great scale pattern.
Source Alex Parker
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Imagine you zoomed in 1000X on some fabric. But then it turned out to be a skeleton!
Source Angelica
A nice and simple white rotated tile pattern.
Source Another One
A seamless background pattern with impressed gray dots.
Source V. Hartikainen
This one is super crisp at 2X. Lined paper with some dust and scratches.
Source HQvectors
This could be a hippy vintage wallpaper.
Source Tileable Patterns