Washi (和紙?) is a type of paper made in Japan. Here’s the pattern for you!
Source Carolynne
A bit like some carbon, or knitted netting if you will.
Source Anna Litvinuk
A seamless pattern based on a rectangular tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
Submitted in a cream color, but you know how I like it.
Source Devin Holmes
Formed by heavily distorting part of a an image of a fish uploaded to Pixabay by GLady
Source Firkin
A white version of the very popular linen pattern.
Source Ant Ekşiler
From a drawing in 'Cowdray: the history of a great English House', Julia Roundell, 1884.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Derived from elements found in a floral ornament drawing on Pixabay.
Source Firkin
A set of paper filters. The base texture is generated the same way, only the compositing mode is varied.
Source Lazur URH
Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
The original enhanced with some gradients.
Source Firkin
Seamless Olive Green Web Background Image
Source V. Hartikainen
A seamless paper background colored in pale yellow.
Source V. Hartikainen
This ons is quite old school looking. Retro, even. I like it.
Source Arno Declercq
Did anyone say The Hoff? This pattern is in no way related to Baywatch.
Source Josh Green
This is lovely, just the right amount of subtle noise, lines and textures.
Source Richard Tabor
Simple gray checkered lines, in light tones.
Source Radosław Rzepecki
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Awesome name, great pattern. Who does not love space?
Source Nick Batchelor
As simple and subtle as it gets. But sometimes that’s just what you want.
Source Designova
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
From a drawing in 'Bond Slaves. The story of a struggle.', Isabella Varley, 1893.
Source Firkin
Sounds French. Some 3D square diagonals, that’s all you need to know.
Source Graphiste
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