Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
Love me some light mesh on a Monday. Sharp.
Source Wilmotte Bastien
A smooth mid-tone gray, or low contrast if you will, linen pattern.
Source Jordan Pittman
This is so subtle I hope you can see it! Tweak at will.
Source Alexandre Naud
Turn your site into a dragon with this great scale pattern.
Source Alex Parker
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
From a design found in 'History of the Virginia Company of London; with letters to and from the first Colony, never before printed', Edward Neill, 1869.
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
You just can’t get enough of the fabric patterns, so here is one more for your collection.
Source Krisp Designs
Alternative colour scheme. 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
It looks like a polished stone surface to me. Download it for free, as always.
Source V. Hartikainen
Found on the ground in french cafe in kunming, Yunnan, china
Source Rejon
From a drawing in 'Cowdray: the history of a great English House', Julia Roundell, 1884.
Source Firkin
Could remind you a bit of those squares in Super Mario Bros, yeh?
Source Jeff Wall
Abstract Ellipses Background Grayscale
Source GDJ
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
Paper pattern with small dust particles and 45-degree strokes.
Source Atle Mo
This one is so simple, yet so good. And you know it. Has to be in the collection.
Source Gluszczenko
Prismatic Groovy Concentric Background 2
Source GDJ
A large (588x375px) sand-colored pattern for your ever-growing collection. Shrink at will.
Source Alex Tapein
This is sort of fresh, but still feels a bit old school.
Source Martuchox
Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.
Source Firkin