Remixed from a drawing in 'Очерки Русской Исторіи въ памятникахъ быта', Petr Polevoi, 1879.
Source Firkin
Some more diagonal lines and noise, because you know you want it.
Source Atle Mo
Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
You don’t see many mid-tone patterns here, but this one is nice.
Source Joel Klein
I know there is one here already, but this is sexy!
Source Gjermund Gustavsen
Inspired by a pattern found in 'A General History of Hampshire, or the County of Southampton, including the Isle of Wight', Bernard Woodwood, 1861
Source Firkin
Super detailed 16×16 tile that forms a beautiful pattern of straws.
Source Pavel
Paper model of a tetrahedron. Modelo de papel de um tetraedro.
Source laobc
Background Wall, Art Abstract, Blue Well & CC0 texture.
Source Ractapopulous
A hint of orange color, and some crossed and embossed lines.
Source Adam Anlauf
Prismatic Geometric Tessellation Pattern 3 No Background
Source GDJ
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Derived from an image that was uploaded to Pixabay by pugmom40
Source Firkin
Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton
If you like it a bit trippy, this wave pattern might be for you.
Source Ian Soper
A car pattern?! Can it be subtle? I say yes!
Source Radosław Rzepecki
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Alternative colour scheme.
Source Firkin
This metal background pattern resembles a metal plate with rivets. Solid rivets on a metal plate.
Source V. Hartikainen
Light gray version of the Binding pattern that looks a bit like fabric.
Source Newbury
Remixed from a drawing in 'The Canadian horticulturist', 1892
Source Firkin
The name alone is awesome, but so is this sweet dark pattern.
Source Federica Pelzel
A background tile for web with abstract repeating texture of dark "stone wall".
Source V. Hartikainen
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
More Japanese-inspired patterns, Gold Scales this time.
Source Josh Green
Formed from a tile based on a drawing from 'Viaggi d'un artista nell'America Meridionale', Guido Boggiani, 1895.
Source Firkin
You know I’m a sucker for these. Well-crafted paper pattern.
Source Mihaela Hinayon
Run a restaurant blog? Here you go. Done.
Source Andrijana Jarnjak
Same as gray sand but lighter. A sandy pattern with small light dots, and some angled strokes.
Source Atle Mo