From a drawing in 'Uit de geschiedenis der Heilige Stede te Amsterdam', Yohannes Sterck, 1898.
Source Firkin
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
One of the few full-color patterns here, but this one was just too good to pass up.
Source Alexey Usoltsev
Inspired by an image that was uploaded to Pixabay by geralt
Source Firkin
Not the most creative name, but it’s a good all-purpose light background.
Source Dmitry
Dark, lines, noise, tactile. You get the drift.
Source Anatoli Nicolae
Prismatic Curved Diamond Pattern 5 No Background
Source GDJ
Submitted as a black pattern, I made it light and a few steps more subtle.
Source Andy
Prismatic Groovy Concentric Background 5
Source GDJ
A re-make of the Gradient Squares pattern.
Source Dimitar Karaytchev
One more brick pattern. A bit more depth to this one.
Source Benjamin Ward
A seamlessly repeating background pattern of wood. The image is procedurally generated, and, I think, it's turned out quite well.
Source V. Hartikainen
Alternative colour scheme for the original floral pattern.
Source Firkin
The classic notebook paper with horizontal stripes.
Source Are Sundnes
Did anyone say The Hoff? This pattern is in no way related to Baywatch.
Source Josh Green
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
Prismatic Abstract Geometric Background 2 No Black
Source GDJ
Floral patterns will never go out of style, so enjoy this one.
Source Lasma
Greyscale version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
Prismatic Groovy Concentric Background No Black
Source GDJ
A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Alternative colour scheme.
Source Firkin
A cute x, if you need that sort of thing.
Source Juan Scrocchi