The square tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
A very slick dark rubber grip pattern, sort of like the grip on a camera.
Source Sinisha
Abstract Arbitrary Geometric Background derived from an image on Pixabay.
Source GDJ
Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
This background pattern looks like bamboo to me. Feel free to download it for your website (for your blog perhaps?).
Source V. Hartikainen
Very dark pattern with some noise and 45-degree lines.
Source Stefan Aleksić
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
One of the few full-color patterns here, but this one was just too good to pass up.
Source Alexey Usoltsev
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
Sharp diamond pattern. A small 24x18px tile.
Source Tom Neal
Hexagonal dark 3D pattern. What more can you ask for?
Source Norbert Levajsics
A nice and simple gray stucco material. Great on its own, or as a base for a new pattern.
Source Bartosz Kaszubowski
Everyone loves a diamond, right? Make your site sparkle.
Source AJ Troxell
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
I skipped number 3, because it wasn’t all that great. Sorry.
Source Dima Shiper
Looks like an old wall. I guess that’s it then?
Source Viahorizon
From a drawing in 'Artists and Arabs', Henry Blackburn, 1868
Source Firkin
Made by distorting a simple pattern using the 'sin waves' plugin for Paint.net and vectorising in Vector Magic
Source Firkin
Could be paper, could be a Polaroid frame – up to you!
Source Chaos
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin