A simple but elegant classic. Every collection needs one of these.
Source Christopher Burton
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
A hint of orange color, and some crossed and embossed lines.
Source Adam Anlauf
Number 5 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
This is lovely, just the right amount of subtle noise, lines and textures.
Source Richard Tabor
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Awesome name, great pattern. Who does not love space?
Source Nick Batchelor
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
People seem to enjoy dark patterns, so here is one with some circles.
Source Atle Mo
I guess this one is inspired by an office. A dark office.
Source Andrés Rigo.
Classic vertical lines, in all its subtlety.
Source Cody L
Did anyone say The Hoff? This pattern is in no way related to Baywatch.
Source Josh Green
Prismatic Isometric Cube Extra Pattern No Background
Source GDJ
More carbon fiber for your collections. This time in white or semi-dark gray.
Source Badhon Ebrahim
A seamless pattern of dark bricks. Maybe it's not very realistic, but it looks good in my opinion.
Source V. Hartikainen
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin