The classic subtle pattern. Sort of wall/brick looking. Or moon-looking?
Source Joel Klein
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Dead simple but beautiful horizontal line pattern.
Source Fabian Schultz
Paper pattern with small dust particles and 45-degree strokes.
Source Atle Mo
To get the tile this is made up from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
The texture of this background image has some similarities with leather, and it's colored in a dark brown color. So, if you are looking for a dark brown background image for your website, this may be an option for you.
Source V. Hartikainen
Here is a new seamless wood texture for using as blog or website backgrounds.
Source V. Hartikainen
It’s like Shine Dotted’s sister, only rotated 45 degrees.
Source mediumidee
A pattern formed from a squared tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
Pattern that came out of playing with the 'slinky' plug-in for Paint.net
Source Firkin
The image is a seamless pattern of a fishnet.
Source Yamachem
Oh yes, it happened! A pattern in full color.
Source Atle Mo
Prismatic Abstract Geometric Background 2 No Black
Source GDJ
The original enhanced with one of Inkscapes's filters.
Source Firkin
ZeroCC tileable mossy (lichen) stone texture, edited from pixabay. CC0
Source Sojan Janso
A seamless pattern formed from background pattern 102
Source Firkin
Horizontal and vertical lines on a light gray background.
Source Adam Anlauf
Stefan is hard at work, this time with a funky pattern of squares.
Source Stefan Aleksić
Actually, there's no clouds in it, but I think it looks quite nice.
Source V. Hartikainen
Formed by distorting an image on Pixabay that was uploaded by gustavorezende. To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
From a drawing in 'Les Chroniqueurs de l'Histoire de France depuis les origines jusqu'au XVIe siècle', Henriette Witt, 1884.
Source Firkin
Sometimes you just need the simplest thing.
Source Fabricio
A seamless pattern drawn originally in Paint.net by distorting a slice of background pattern 116 and copying the resulting triangle numerous times.
Source Firkin
A topographic map like this has actually been requested a few times, so here you go!
Source Sam Feyaerts