A huge one at 800x600px. Made from a photo I took going home after work.
Source Atle Mo
Prismatic Hypnotic Pattern No Background
Source GDJ
Derived from an image that was uploaded to Pixabay by mdmelo.
Source Firkin
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Nice and simple crossed lines in dark gray tones.
Source Stefan Aleksić
A pale yellow background pattern with vertical stripes. The stripes are partially faded. I think this background image turned out pretty well, especially those faded stripes.
Source V. Hartikainen
Zero CC tillable hard cover red book with X shape marks. Scanned and made by me.
Source Sojan Janso
Prismatic Polka Dots Mark II No Background
Source GDJ
Prismatic Snowflakes Pattern No Background
Source GDJ
A seamless pattern the starting point for which was a 'light rays' rendering in Paint.net.
Source Firkin
A lot of people like the icon patterns, so here’s one for your restaurant blog.
Source Andrijana Jarnjak
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A bit like smudged paint or some sort of steel, here is scribble light.
Source Tegan Male
Classic vertical lines, in all its subtlety.
Source Cody L
Tiny little fibers making a soft and sweet look.
Source Badhon Ebrahim
Remixed from a drawing in 'A Girl in Ten Thousand', Elizabeth Meade, 1896.
Source Firkin
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
This background pattern has futuristic look. So, maybe it could be used on websites or blogs dedicated to video games?!
Source V. Hartikainen
Derived from an image that was uploaded to Pixabay by Kaz
Source Firkin
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
This is the remix of "polka dot seamless pattern".The image depicts polka dot seamless pattern.
Source Yamachem
From a drawing in 'The Quiver of Love', Walter Crane, 1876
Source Firkin