A heavy hitter at 400x400px, but lovely still.
Source Breezi
The base gradient edited so now more details are rendered.
Source Lazur URH
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
From a drawing in 'Resa i Afrika, genom Angola, Ovampo och Damaraland', P. Moller, 1899.
Source Firkin
You could get a bit dizzy from this one, but it might come in handy.
Source Dertig Media
Prismatic Hexagonalism Pattern No Background
Source GDJ
A large pattern with funky shapes and form. An original. Sort of origami-ish.
Source Luuk van Baars
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Fabric-ish patterns are close to my heart. French Stucco to the rescue.
Source Christopher Buecheler
Here's a camo print with more tan and less green, such as might be used in a desert scenario. This is tileable, so it can be used as a wallpaper or background.
Source Eady
Remixed from a drawing in 'The Canadian horticulturist', 1892
Source Firkin
A pale yellow background pattern with vertical stripes. The stripes are partially faded. I think this background image turned out pretty well, especially those faded stripes.
Source V. Hartikainen
No idea what Nistri means, but it’s a crisp little pattern nonetheless.
Source Markus Reiter
Remixed from a drawing in 'Очерки Русской Исторіи въ памятникахъ быта', Petr Polevoi, 1879.
Source Firkin
A hint of orange color, and some crossed and embossed lines.
Source Adam Anlauf
Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton
You guessed it – looks a bit like cloth.
Source Peax Webdesign
The classic subtle pattern. Sort of wall/brick looking. Or moon-looking?
Source Joel Klein
Pass parameters to the URL or edit the source code variables to configure the graph paper for the division desired.
Source JayNick
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
From a drawing in 'Cassell's Library of English Literature', Henry Morley, 1883.
Source Firkin
A bit like some carbon, or knitted netting if you will.
Source Anna Litvinuk