Horizontal and vertical lines on a light gray background.
Source Adam Anlauf
From a drawing in 'In an Enchanted Island', William Mallock, 1892.
Source Firkin
This is lovely, just the right amount of subtle noise, lines and textures.
Source Richard Tabor
You know I’m a sucker for these. Well-crafted paper pattern.
Source Mihaela Hinayon
One more sharp little tile for you. Subtle circles this time.
Source Blunia
Light gray paper pattern with small traces of fiber and some dust.
Source Atle Mo
Sharp pixel pattern looking like some sort of fabric.
Source Dmitry
With a name this awesome, how can I go wrong?
Source Nikolay Boltachev
Could remind you a bit of those squares in Super Mario Bros, yeh?
Source Jeff Wall
Actually, there's no clouds in it, but I think it looks quite nice.
Source V. Hartikainen
An abstract pale yellow paper-like background with stains colored in yellow and green.
Source V. Hartikainen
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
From an image on opengameart.org shared by rubberduck.
Source Firkin
Submitted by DomainsInfo – wtf, right? But hey, a free pattern.
Source DomainsInfo