From a drawing in 'Resa i Afrika, genom Angola, Ovampo och Damaraland', P. Moller, 1899.
Source Firkin
Number 5 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Honestly, who does not like a little pipe and mustache?
Source Luca Errico
ZeroCC tileable stone texture, edited from pixabay, CC0
Source Sojan Janso
Horizontal and vertical lines on a light gray background.
Source Adam Anlauf
Crossing lines with a subtle emboss effect on a dark background.
Source Stefan Aleksić
Feel free to download and use it, or see the rest of the dark background patterns that I have made. Anyway, I hope you will find something that you like.
Source V. Hartikainen
This one could be the shirt of a golf player. Angled lines in different thicknesses.
Source Olivier Pineda
If you like it a bit trippy, this wave pattern might be for you.
Source Ian Soper
Remixed from a design on Pixabay. To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Traced from a drawing in 'Household Stories from the Collection of the Brothers Grimm', Wilhelm Carl Grimm , 1882.
Source Firkin
One of the few full-color patterns here, but this one was just too good to pass up.
Source Alexey Usoltsev
These dots are already worn for you, so you don’t have to.
Source Matt McDaniel
The image depicts a Japanese Edo pattern called "kanoko or 鹿の子" meaning "fawn" which has a fur with small white spots.
Source Yamachem
f you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
Looks like an old rug or a computer chip.
Source Patutin Sergey
And some more testing, this time with Seamless Studio. It’s Robots FFS!
Source Seamless Studio
In the spirit of WWDC 2011, here is a dark iOS inspired linen pattern.
Source Atle Mo
The image depicts a seamless pattern of a Japanese family crest called "chidori" in Japanese .A chidori in Japanese means a plover in English.
Source Yamachem
CC0 remixed from a drawing. Walter Crane, 1914, Firkin.
Source SliverKnight
Tiny little flowers growing on your screen. Nice, huh?
Source Themes Tube
White fabric looking texture with some nice random wave features.
Source Hendrik Lammers
Seamless Green Tile Background
Source V. Hartikainen