Nicely crafted paper pattern, although a bit on the large side (500x593px).
Source Blaq Annabiosis
Crossing lines with a subtle emboss effect on a dark background.
Source Stefan Aleksić
Black brick wall pattern. Brick your site up!
Source Alex Parker
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
Scanned some rice paper and tiled it up for you. Enjoy.
Source Atle Mo
A web texture of brown canvas. Will look great, when used in dark web designs.
Source V. Hartikainen
Abstract Ellipses Background Grayscale
Source GDJ
A heavy dark gray base, some subtle noise and a 45-degree grid makes this look like a pattern with a tactile feel to it.
Source Atle Mo
It almost looks a bit blurry, but then again, so are fishes.
Source Petr Šulc
We have some linen patterns here, but none that are stressed. Until now.
Source Jordan Pittman
A cute x, if you need that sort of thing.
Source Juan Scrocchi
Prismatic Groovy Concentric Background No Black
Source GDJ
Can never have too many knitting patterns, especially as nice as this.
Source Victoria Spahn
A repeating background with seamless texture of stone. There haven't been any stone-like backgrounds for a while, so I have decided to create one more. The rest can be found in the appropriate category.
Source V. Hartikainen
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
A seamless striped fabric-like texture colored in a dark reddish brown color.
Source V. Hartikainen
This one takes you back to math class. Classic mathematic board underlay.
Source Josh Green
Nothing like a clean set of bed sheets, huh?
Source Badhon Ebrahim
Super detailed 16×16 tile that forms a beautiful pattern of straws.
Source Pavel
A version without colours blended together to give a different look.
Source Firkin
An emulated “transparent” background pattern, like that of all kinds of computer graphics software.
Source AdamStanislav
A seamless pattern of dark bricks. Maybe it's not very realistic, but it looks good in my opinion.
Source V. Hartikainen
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin