Black brick wall pattern. Brick your site up!
Source Alex Parker
Dark, crisp and subtle. Tiny black lines on top of some noise.
Source Wilmotte Bastien
The image is a seamless pattern of a fishnet.
Source Yamachem
Black & white version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
More in the paper realm, this time with fibers.
Source Jorge Fuentes
I’m starting to think I have a concrete wall fetish.
Source Atle Mo
A seamless web background with texture of aged grid paper.
Source V. Hartikainen
Super simple but very nice indeed. Gray with vertical stripes.
Source Merrin Macleod
White handmade paper pattern with small bumps.
Source Marquis
Prismatic Curved Diamond Pattern 4 No Background
Source GDJ
Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Derived from a drawing in 'The Murmur of the Shells', Samuel Cowen, 1879.
Source Firkin
Based on an image that was uploaded to Pixabay by devanath
Source Firkin
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
A dark metallic background with a pattern of stamped dots. Here's a dark "metallic" background pattern for you.
Source V. Hartikainen
Remixed from a drawing in 'The Canadian horticulturist', 1892
Source Firkin
I’m not going to use the word Retina for all the new patterns, but it just felt right for this one. Huge wood pattern for ya’ll.
Source Atle Mo
You know you love wood patterns, so here’s one more.
Source Richard Tabor
Dark squares with some virus-looking dots in the grid.
Source Hugo Loning
An alternative colour scheme to the original seamless pattern.
Source Firkin
From a drawing in 'In an Enchanted Island', William Mallock, 1892.
Source Firkin
I love the movie Pineapple Express, and I’m also liking this Pineapple right here.
Source Audee Mirza
You just can’t get enough of the fabric patterns, so here is one more for your collection.
Source Krisp Designs
Carbon fiber is never out of fashion, so here is one more style for you.
Source Alfred Lee
The image depicts a seamless pattern of the design which includes a stylized lotus and a stylized crane.I referred to the original image in a book which is into public domain.
Source Yamachem
Utilising some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin