From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Zero CC tileable hard cover cells book texture, 4k, scanned and made by me. CC0
Source Sojan Janso
A seamlessly repeating background pattern of wood. The image is procedurally generated, and, I think, it's turned out quite well.
Source V. Hartikainen
The classic notebook paper with horizontal stripes.
Source Are Sundnes
Bit of a strange name on this one, but still nice. Tiny gray square things.
Source Carlos Valdez
Zero CC tileable Laminate wood texture, photographed and made by me. CC0
Source Sojan Janso
Medium gray pattern with small strokes to give a weave effect.
Source Catherine
This was submitted in a beige color, hence the name. Now it’s a gray paper pattern.
Source Konstantin Ivanov
Not the Rebel alliance, but a dark textured pattern.
Source Hendrik Lammers
Pattern formed from simple shapes. Black version.
Source Firkin
Prismatic Floral Pattern 3 Variation 3 No Background
Source GDJ
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Prismatic Groovy Concentric Background 4 No Black
Source GDJ
Remixed from a drawing in 'Works. Popular edition', John Ruskin, 1886.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Remixed from a drawing in 'Kulturgeschichte der Deutschen im Mittelalter' Franz von Loeher, 1891. The unit tile can be had by selecting the rectangle in Inkscape and using shift-alt-i
Source Firkin
A large (588x375px) sand-colored pattern for your ever-growing collection. Shrink at will.
Source Alex Tapein
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
Submitted in a cream color, but you know how I like it.
Source Devin Holmes
Continuing the geometric trend, here is one more.
Source Mike Warner
A new take on the black linen pattern. Softer this time.
Source Atle Mo
The basic shapes never get old. Simple triangle pattern.
Source Atle Mo
Black brick wall pattern. Brick your site up!
Source Alex Parker
Light gray version of the Binding pattern that looks a bit like fabric.
Source Newbury
Formed from a tile based on a drawing from 'Viaggi d'un artista nell'America Meridionale', Guido Boggiani, 1895.
Source Firkin