Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Sounds like something from World of Warcraft. Has to be good.
Source Tony Kinard
If you like it a bit trippy, this wave pattern might be for you.
Source Ian Soper
Colour version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
From a drawing in 'Handbook of the excursions proposed to be made by the Lincoln Diocesan Architectural Society, on the 27th and 28th of May, 1857', Edward Trollope, 1857.
Source Firkin
A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Alternative colour scheme.
Source Firkin
A free pink background pattern.
Source V. Hartikainen
Lovely light gray floral motif with some subtle shades.
Source GraphicsWall
Made by distorting a simple pattern using the 'sin waves' plugin for Paint.net and vectorising in Vector Magic
Source Firkin
Paper pattern with small dust particles and 45-degree strokes.
Source Atle Mo
Washi (和紙?) is a type of paper made in Japan. Here’s the pattern for you!
Source Carolynne
This is a hot one. Small, sharp and unique.
Source GraphicsWall
A rusty grunge background for websites. Feel free to use it in your site's theme.
Source V. Hartikainen
Fake or not, it’s quite luxurious.
Source Factorio.us Collective
Submitted as a black pattern, I made it light and a few steps more subtle.
Source Andy
f you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Nice and simple crossed lines in dark gray tones.
Source Stefan Aleksić
This beige background pattern resembles a concrete wall with engravings or something similar to it.
Source V. Hartikainen
From a drawing in 'Resa i Afrika, genom Angola, Ovampo och Damaraland', P. Moller, 1899.
Source Firkin
A seamless pattern of leopard skin. It should look nice as a background element on web pages.
Source V. Hartikainen
This is so subtle: We’re talking 1% opacity. Get your squint on!
Source Atle Mo
Background formed from the iconic plastic construction bricks that gave me endless hours of fun when I was a lad.
Source Firkin
White handmade paper pattern with small bumps.
Source Marquis
An emulated “transparent” background pattern, like that of all kinds of computer graphics software.
Source AdamStanislav