A nice one indeed, but I have a feeling we have it already? If you spot a copy, let me know on Twitter.
Source Graphiste
Prismatic Geometric Pattern Background
Source GDJ
Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Prismatic Groovy Concentric Background 3
Source GDJ
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Seamless Prismatic Geometric Pattern With Background
Source GDJ
This is a grid, only it’s noisy. You know. Reminds you of those printed grids you draw on.
Source Vectorpile
Subtle scratches on a light gray background.
Source Andrey Ovcharov
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
This one could be the shirt of a golf player. Angled lines in different thicknesses.
Source Olivier Pineda
A smooth mid-tone gray, or low contrast if you will, linen pattern.
Source Jordan Pittman
Here's a quite bright pink background pattern for use on websites. It doesn't look like a real fur, but it definitely resembles one.
Source V. Hartikainen
Nice and simple crossed lines in dark gray tones.
Source Stefan Aleksić
Bigger is better, right? So here you have some large carbon fiber.
Source Factorio.us Collective
A new one called white wall, not by me this time.
Source Yuji Honzawa
Prismatic Geometric Tessellation Pattern No Background
Source GDJ
From a drawing in 'Resa i Afrika, genom Angola, Ovampo och Damaraland', P. Moller, 1899.
Source Firkin
It’s a hole, in a pattern. On your website. Dig it!
Source Josh Green
Classy golf-pants pattern, or crossed stripes if you will.
Source Will Monson
This background has abstract texture with some similarities to wood.
Source V. Hartikainen
Dark, crisp and subtle. Tiny black lines on top of some noise.
Source Wilmotte Bastien
A comeback for you: the popular Escheresque, now in black.
Source Patten
Have you wondered about how it feels to be buried alive? Here is the pattern for it.
Source Hendrik Lammers
A pattern formed from a squared tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
A topographic map like this has actually been requested a few times, so here you go!
Source Sam Feyaerts
You can never get enough of these tiny pixel patterns with sharp lines.
Source Designova
Prismatic Geometric Pattern Background 2
Source GDJ
Not sure if this is related to the Nami you get in Google image search, but hey, it’s nice!
Source Dertig Media