From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
This metal background pattern resembles a metal plate with rivets. Solid rivets on a metal plate.
Source V. Hartikainen
The image is the remix of "wire-mesh fence seamless pattern" .This is a more minute version of it.Sorry for the file size.Using path>difference in Inkscape, I will cut out any silhouette from this pattern and create a "meshed silhouette".
Source Yamachem
This background has abstract texture with some similarities to wood.
Source V. Hartikainen
From a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
A background pattern with blue on white vertical stripes.
Source V. Hartikainen
A seamless pattern formed from a tile made from page ornament 22. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
You know you can’t get enough of these linen-fabric-y patterns.
Source James Basoo
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
A topographic map like this has actually been requested a few times, so here you go!
Source Sam Feyaerts
I asked Gjermund if he could make a pattern for us – result!
Source Gjermund Gustavsen
Prismatic Curved Diamond Pattern 5 No Background
Source GDJ
Love me some light mesh on a Monday. Sharp.
Source Wilmotte Bastien
I skipped number 3, because it wasn’t all that great. Sorry.
Source Dima Shiper
This is lovely, just the right amount of subtle noise, lines and textures.
Source Richard Tabor
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Floral Pattern 3 Variation 3 No Background
Source GDJ
Prismatic Abstract Line Art Pattern Background 2
Source GDJ
Derived from an image that was uploaded to Pixabay by starchim01
Source Firkin
Here's an yet another background for websites, with a seamless texture of wood planks this time.
Source V. Hartikainen
A seamless web texture with illustration of pale color stains on canvas.
Source V. Hartikainen
Prismatic Geometric Pattern Background
Source GDJ
A simple bump filter made upon request at irc #inkscape at freenode. Made a screen capture of the making here: https://youtu.be/TGAWYKVLxQw
Source Lazur URH