A huge one at 800x600px. Made from a photo I took going home after work.
Source Atle Mo
Heavily remixed from a drawing that was uploaded to Pixabay by ractapopulous
Source Firkin
Simple combination of stripy squares with their negatively coloured counterparts
Source Firkin
Bright Multicolored Floral Background by Karen Arnold from PDP.
Source GDJ
Number 3 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
A dark gray, sandy pattern with small light dots, and some angled strokes.
Source Atle Mo
An abstract web texture of a polished blue stone (or does it look more like ice).
Source V. Hartikainen
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
A heavy hitter at 400x400px, but lovely still.
Source Breezi
Imagine you zoomed in 1000X on some fabric. But then it turned out to be a skeleton!
Source Angelica
A new take on the black linen pattern. Softer this time.
Source Atle Mo
Bright gray tones with a hint of some metal surface.
Source Hendrik Lammers
This could be a hippy vintage wallpaper.
Source Tileable Patterns
From a drawing in 'Navigations de Alouys de Cademoste.-La Navigation du Capitaine Pierre Sintre', Alvise da ca da Mosto, 1895.
Source Firkin
A simple circle. That’s all it takes. This one is even transparent, for those who like that.
Source Saqib
Sort of like the Photoshop transparent background, but better!
Source Alex Parker
Prismatic Geometric Pattern Variation 2 With Background
Source GDJ
Zero CC tileable Crackled Cement (streaks) texture, photographed and made by me. CC0
Source Sojan Janso
One of the few full-color patterns here, but this one was just too good to pass up.
Source Alexey Usoltsev
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
A background tile of dark textile. Made this a long time ago and just now decided to publish it.
Source V. Hartikainen
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin