A seamless light gray paper texture with horizontal double lines.
Source V. Hartikainen
Sounds like something from World of Warcraft. Has to be good.
Source Tony Kinard
Prismatic Geometric Pattern Variation 2 With Background
Source GDJ
Sweet and subtle white plaster with hints of noise and grunge.
Source Phil Maurer
Looks like an old wall. I guess that’s it then?
Source Viahorizon
From a drawing in 'Gately's World's Progress', Charles Beale, 1886.
Source Firkin
Prismatic Abstract Geometric Background 2
Source GDJ
From an image on opengameart.org shared by rubberduck.
Source Firkin
After 1 comes 2, same but different. You get the idea.
Source Hendrik Lammers
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Never out of fashion and so much hotter than the 45º everyone knows, here is a sweet 60º line pattern.
Source Atle Mo
White fabric looking texture with some nice random wave features.
Source Hendrik Lammers
Pattern #100! A black classic knit-looking pattern.
Source Factorio.us Collective
I love the movie Pineapple Express, and I’m also liking this Pineapple right here.
Source Audee Mirza
Lovely light gray floral motif with some subtle shades.
Source GraphicsWall
Nice and simple crossed lines in dark gray tones.
Source Stefan Aleksić
This seamless pattern consists of a blue grid on a yellow background.
Source V. Hartikainen
An abstract pale yellow paper-like background with stains colored in yellow and green.
Source V. Hartikainen
Seamless Green Tile Background
Source V. Hartikainen
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Prismatic Groovy Concentric Background 3
Source GDJ
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Thin lines, noise and texture creates this crisp dark denim pattern.
Source Marco Slooten
From a drawing in 'Studies for Stories', Jean Ingelow, 1864.
Source Firkin
Beautiful dark noise pattern with some dust and grunge.
Source Vincent Klaiber
Inspired by a pattern seen on a public domain image of a very old tile. To get the unit cell, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin