I skipped number 3, because it wasn’t all that great. Sorry.
Source Dima Shiper
From a drawing in 'Real Sailor-Songs', John Ashton, 1891.
Source Firkin
Just a nice looking textured pattern with faded blue stripes. Well, that's it for today... one background a day, as usual.
Source V. Hartikainen
Here's a new paper-like background for free use on personal and commercial projects (this applies to all background patterns here).
Source V. Hartikainen
A seamless pattern formed from miutopia mug remixes on a tablecloth.
Source Firkin
You may use it as is, or modify it as you like.
Source V. Hartikainen
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
I have no idea how to describe this one, but it’s light and delicate.
Source JBasoo
This is a semi-dark pattern, sort of linen-y.
Source Sagive SEO
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
Embossed lines and squares with subtle highlights.
Source Alex Parker
Did anyone say The Hoff? This pattern is in no way related to Baywatch.
Source Josh Green
A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.
Source Firkin
Light gray grunge wall with a nice texture overlay.
Source Adam Anlauf
Dark and hard, just the way we like it. Embossed triangles makes a nice pattern.
Source Ivan Ginev
A background formed from an image of an old tile on the New York Metropolitan Museum of Art website. To get the base tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
You know, tiny and sharp. I’m sure you’ll find a use for it.
Source Atle Mo
Same as the black version, but now in shades of gray. Very subtle and fine grained.
Source Atle Mo
Submitted as a black pattern, I made it light and a few steps more subtle.
Source Andy
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Remixed from a drawing in 'Analecta Eboracensia', Thomas Widdrington, 1897.
Source Firkin