Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
Prismatic Abstract Background Design No Black
Source GDJ
Turn your site into a dragon with this great scale pattern.
Source Alex Parker
Black brick wall pattern. Brick your site up!
Source Alex Parker
Almost like little fish shells, or dragon skin.
Source Graphiste
Small gradient crosses inside 45-degree boxes, or bigger crosses if you will.
Source Wassim
Dark blue concrete wall with some small dust spots.
Source Atle Mo
This ladies and gentlemen, is texturetastic! Love it.
Source Adam Pickering
From a drawing in 'Artists and Arabs', Henry Blackburn, 1868.
Source Firkin
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
You just can’t get enough of the fabric patterns, so here is one more for your collection.
Source Krisp Designs
This is the remix of "polka dot seamless pattern".The image depicts polka dot seamless pattern.
Source Yamachem
Prismatic Groovy Concentric Background 3
Source GDJ
From a drawing in 'Friend or Fortune? The story of a strange year', Robert Overton, 1897.
Source Firkin
Pattern #100! A black classic knit-looking pattern.
Source Factorio.us Collective
Drawn in Paint.net using the kaleidoscope plug-in and vectorised.
Source Firkin
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Prismatic Abstract Geometric Background 4
Source GDJ
A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-I. A version of the original with random colors.
Source Firkin
A fun-looking elastoplast/band-aid pattern. A hint of orange tone in this one.
Source Josh Green
Fake or not, it’s quite luxurious.
Source Factorio.us Collective
Sweet and subtle white plaster with hints of noise and grunge.
Source Phil Maurer
I skipped number 3, because it wasn’t all that great. Sorry.
Source Dima Shiper