Washi (和紙?) is a type of paper made in Japan. Here’s the pattern for you!
Source Carolynne
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
Can’t believe we don’t have this in the collection already! Slick woven pattern with crisp details.
Source Max Rudberg
Prismatic Chevrons Pattern 5 With Background
Source GDJ
A seamless web texture of "green stone".
Source V. Hartikainen
Utilising some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Prismatic Polyskelion Pattern No Background
Source GDJ
Remixed from a drawing in 'A Girl in Ten Thousand', Elizabeth Meade, 1896.
Source Firkin
Sort of reminds me of those old house wallpapers.
Source Tish
This is a semi-dark pattern, sort of linen-y.
Source Sagive SEO
I skipped number 3, because it wasn’t all that great. Sorry.
Source Dima Shiper
Simple gray checkered lines, in light tones.
Source Radosław Rzepecki
Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
Prismatic Groovy Concentric Background 3 No Black
Source GDJ
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
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 green background texture. The image is distributed under a Creative Commons License (like all of the images here).
Source V. Hartikainen
The image depicts a seamless pattern of the design which includes a stylized lotus and a stylized crane.I referred to the original image in a book which is into public domain.
Source Yamachem