Super simple but very nice indeed. Gray with vertical stripes.
Source Merrin Macleod
A browner version of the original weathered fence texture.
Source Firkin
This reminds me of Game Cube. A nice light 3D cube pattern.
Source Sander Ottens
I guess this one is inspired by an office. A dark office.
Source Andrés Rigo.
From drawing in 'Musings in Maoriland', Thomas Bracken, 1890.
Source Firkin
A black tile-able background with paper-like texture.
Source V. Hartikainen
Looks like a technical drawing board: small squares forming a nice grid.
Source We Are Pixel8
Fake or not, it’s quite luxurious.
Source Factorio.us Collective
Looks like an old rug or a computer chip.
Source Patutin Sergey
One more in the line of patterns inspired by Japanese/Asian styles. Smooth.
Source Kim Ruddock
A light gray wall or floor (you decide) of concrete.
Source Atle Mo
Don’t look at this one too long if you’re high on something.
Source Luuk van Baars
The image depicts a seamless pattern made using a bird's face.
Source Yamachem
A seamless texture of worn out "cardboard".
Source V. Hartikainen
Formed from a tile based on a drawing from 'Viaggi d'un artista nell'America Meridionale', Guido Boggiani, 1895.
Source Firkin
From a drawing in 'Gately's World's Progress', Charles Beale, 1886.
Source Firkin
The tile this fill pattern is based on can be had by using shift+alt+i on the rectangle.
Source Firkin
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i
Source Firkin
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
You were craving more leather, so I whipped this up by scanning a leather jacket.
Source Atle Mo
The image a seamless pattern derived from a weed which I can't identify.The original weed image is from here:https://jp.pinterest.com/pin/500744052301423641/
Source Yamachem