Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
8 by 8 pixels, and just what the title says.
Source pixilated
A floral background formed from numerous clones of flower 117.
Source Firkin
Prismatic Isometric Cube Extra Pattern No Background
Source GDJ
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
To get the tile this is made up from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Luxury pattern, looking like it came right out of Paris.
Source Daniel Beaton
You don’t see many mid-tone patterns here, but this one is nice.
Source Joel Klein
Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
A white version of the very popular linen pattern.
Source Ant Ekşiler
You may use it as is, or modify it as you like.
Source V. Hartikainen
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Cubes as far as your eyes can see. You know, because they tile.
Source Jan Meeus
Here's an yet another seamless note paper texture for use as a background on websites.
Source V. Hartikainen
Here's a seamless brown cork board background texture. Feel free to download or reshare if you like.
Source V. Hartikainen
One more from Badhon, sharp horizontal lines making an embossed paper feeling.
Source Badhon Ebrahim
I have no idea how to describe this one, but it’s light and delicate.
Source JBasoo
A free seamless background pattern for use on websites.
Source V. Hartikainen
Remixed from a drawing in 'Works. Popular edition', John Ruskin, 1886.
Source Firkin
A smooth mid-tone gray, or low contrast if you will, linen pattern.
Source Jordan Pittman
The image depicts a seamless pattern of pine tree leaves.
Source Yamachem