This is so subtle I hope you can see it! Tweak at will.
Source Alexandre Naud
Inspired by an image that was uploaded to Pixabay by geralt
Source Firkin
This seamless web background texture looks like gray stone. It's great for using as a background image on web pages, or on some of their elements. Anyway, I hope you will find use for it.
Source V. Hartikainen
Like the name says, light and gray, with some small dots and circles.
Source Brenda Lay
Someone was asking about how to achieve a fur pattern at #inkscape irc so tried to make a filter on it. Flood filled fractal noises rigged together. May someone find a good use for these.
Source Lazur URH
Have you wondered about how it feels to be buried alive? Here is the pattern for it.
Source Hendrik Lammers
All good things come in threes, so I give you the third in my little concrete wall series.
Source Atle Mo
The classic 45-degree diagonal line pattern, done right.
Source Jorick van Hees
An emulated “transparent” background pattern, like that of all kinds of computer graphics software.
Source AdamStanislav
This was submitted in a beige color, hence the name. Now it’s a gray paper pattern.
Source Konstantin Ivanov
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
From a drawing in 'Cassell's Library of English Literature', Henry Morley, 1883.
Source Firkin
Not even 1kb, but very stylish. Gray thin lines.
Source Struck Axiom
This is so subtle you need to bring your magnifier!
Source Carlos Valdez
Prismatic Groovy Concentric Background 2
Source GDJ
Remixed from a drawing in 'Jezebel's Daughter', Wilkie Collins 1880
Source Firkin
I’m starting to think I have a concrete wall fetish.
Source Atle Mo
More carbon fiber for your collections. This time in white or semi-dark gray.
Source Badhon Ebrahim
Light square grid pattern, great for a “DIY projects” sort of website, maybe?
Source Rafael Almeida
Abstract Arbitrary Geometric Background derived from an image on Pixabay.
Source GDJ
Zero CC tileable ground (#2) cracked, crackled texture, made by me. CC0
Source Sojan Janso