A seamless pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
A pale olive green background with a seamless texture.
Source V. Hartikainen
From a drawing in 'La Principauté de Liège et les Pays-Bas au XVIe siècle', Société des Bibliophiles Liégeois ,1887.
Source Firkin
With a name like this, it has to be hot. Diagonal lines in light shades.
Source Isaac
Remixed from a raster on Pixabay, that was uploaded by ArtsyBee.
Source Firkin
Horizontal and vertical lines on a light gray background.
Source Adam Anlauf
A seamless light gray paper texture with horizontal double lines.
Source V. Hartikainen
A large pattern with funky shapes and form. An original. Sort of origami-ish.
Source Luuk van Baars
Dark squares with some virus-looking dots in the grid.
Source Hugo Loning
Tiny circle waves, almost like the ocean.
Source Sagive
Super detailed 16×16 tile that forms a beautiful pattern of straws.
Source Pavel
Love the style on this one, very fresh. Diagonal diamond pattern. Get it?
Source INS
Continuing the geometric trend, here is one more.
Source Mike Warner
I love these crisp, tiny, super subtle patterns.
Source Badhon Ebrahim
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Not so subtle. These tileable wood patterns are very useful.
Source Elemis
It’s a hole, in a pattern. On your website. Dig it!
Source Josh Green
A browner version of the original weathered fence texture.
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
A bit like smudged paint or some sort of steel, here is scribble light.
Source Tegan Male
As simple and subtle as it gets. But sometimes that’s just what you want.
Source Designova