Tiny circle waves, almost like the ocean.
Source Sagive
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Geometric Pattern Variation 2 With Background
Source GDJ
You can never get enough of these tiny pixel patterns with sharp lines.
Source Designova
From drawing in 'Musings in Maoriland', Thomas Bracken, 1890.
Source Firkin
The original enhanced with some gradients.
Source Firkin
A seamless background pattern of dark brown wood planks.
Source V. Hartikainen
8 by 8 pixels, and just what the title says.
Source pixilated
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
Utilising some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Sharp pixel pattern looking like some sort of fabric.
Source Dmitry
A seamless dark leather-like background texture with diagonal lines that look like stitches.
Source V. Hartikainen
Dark and hard, just the way we like it. Embossed triangles makes a nice pattern.
Source Ivan Ginev
Remixed from a vector adapted from a jpg on Pixabay. The tile this is constructed from can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Prismatic Floral Pattern 3 Variation 3 No Background
Source GDJ
More in the paper realm, this time with fibers.
Source Jorge Fuentes
One more brick pattern. A bit more depth to this one.
Source Benjamin Ward
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Feel free to use this seamless background texture as a background on a web site. It's colored in a light pink color and is seamlessly tile-able.
Source V. Hartikainen
This is so subtle: We’re talking 1% opacity. Get your squint on!
Source Atle Mo
A light brushed aluminum pattern for your pleasure.
Source Tim Ward
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Because I love dark patterns, here is Brushed Alum in a dark coating.
Source Tim Ward
Fix side and a seamless pattern formed from circles.
Source SliverKnight