Looks like an old wall. I guess that’s it then?
Source Viahorizon
Prismatic Geometric Pattern Variation 2 With Background
Source GDJ
A seamless pattern that includes the original tile (go to Objects / Pattern / Pattern To Objects in Inkscape's menu to extract it).
Source GDJ
Here's a subtle marble-like background for use on websites.
Source V. Hartikainen
A series of 5 patterns. That’s what the P stands for, if you didn’t guess it.
Source Dima Shiper
A textured orange background pattern with vertical stripes.
Source V. Hartikainen
Prismatic Groovy Concentric Background 3 No Black
Source GDJ
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
You know you love wood patterns, so here’s one more.
Source Richard Tabor
Number five from the same submitter, makes my job easy.
Source Dima Shiper
From a drawing in 'Gately's World's Progress', Charles Beale, 1886.
Source Firkin
Remix from a drawing in 'Ostatnie chwile powstania styczniowego', Zygmunt Sulima, 1887.
Source Firkin
Remixed from an image on Pixabay, the original having been uploaded by darkmoon1968.
Source Firkin
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
A seamless pattern the starting point for which was a 'colour modulo' texture in Paint.net.
Source Firkin
From a drawing in 'Heroes of North African Discovery', Nancy Meugens, 1894.
Source Firkin
Lovely pattern with splattered vintage speckles.
Source David Pomfret
You know you can’t get enough of these linen-fabric-y patterns.
Source James Basoo
Remixed from a drawing that was uploaded to Pixabay by captenpub.
Source Firkin