This was formed by distorting an image of a background on Pixabay.
Source Firkin
Here's a camo print with more tan and less green, such as might be used in a desert scenario. This is tileable, so it can be used as a wallpaper or background.
Source Eady
Zero CC tileable brick texture, photographed and made by me. CC0
Source Sojan Janso
From a drawing in 'Two Women in the Klondike', Mary Hitchcock, 1899.
Source Firkin
An abstract web texture of a polished blue stone (or does it look more like ice).
Source V. Hartikainen
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i
Source Firkin
A background tile for web with abstract repeating texture of dark "stone wall".
Source V. Hartikainen
Hexagonal dark 3D pattern. What more can you ask for?
Source Norbert Levajsics
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
This background pattern has futuristic look. So, maybe it could be used on websites or blogs dedicated to video games?!
Source V. Hartikainen
A seamless background pattern with a texture of wood planks. This wood background pattern has vertically arranged planks. You may try to rotate it 90°, to see how it will look like when the wood planks are arranged horizontally.
Source V. Hartikainen
A new one called white wall, not by me this time.
Source Yuji Honzawa
A large pattern with funky shapes and form. An original. Sort of origami-ish.
Source Luuk van Baars
A free seamless background with pink spots.
Source V. Hartikainen
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift-alt-i.
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
The image a seamless pattern of a wire-mesh fence.I want you to use this pattern as a lower layer.
Source Yamachem
Inspired by a JPG that was uploaded to Pixabay by kokon_art
Source Firkin
Nice and simple crossed lines in dark gray tones.
Source Stefan Aleksić