I know there is one here already, but this is sexy!
Source Gjermund Gustavsen
Zero CC tileable brick texture, photographed and made by me. CC0
Source Sojan Janso
This background image is great for using in web design or graphic design projects. And don't forget to visit the homepage. I frequently update this resource with fresh tileable backgrounds.
Source V. Hartikainen
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
A bit like some carbon, or knitted netting if you will.
Source Anna Litvinuk
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
Remixed from an image that was uploaded to Pixabay by CatherineClennan
Source Firkin
A pattern derived from part of a fractal rendering in Paint.net.
Source Firkin
Used the 6th circle pattern designed by Viscious-Speed to create a print that can be used for card making or scrapbooking. Save as a PDF file for the best printing option.
Source Lovinglf
I guess this is inspired by the city of Ravenna in Italy and its stone walls.
Source Sentel
This is lovely, just the right amount of subtle noise, lines and textures.
Source Richard Tabor
Continuing the geometric trend, here is one more.
Source Mike Warner
From a drawing in 'Studies for Stories', Jean Ingelow, 1864.
Source Firkin
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Prismatic Groovy Concentric Background 3 No Black
Source GDJ