From a drawing in 'Les Chroniqueurs de l'Histoire de France depuis les origines jusqu'au XVIe siècle', Henriette Witt, 1884.
Source Firkin
Here's a camo print with more tan and less green, such as might be used in a desert scenario. This is tileable, so it can be used as a wallpaper or background.
Source Eady
Black & white version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
Fake or not, it’s quite luxurious.
Source Factorio.us Collective
Colored maple leaves scattered on a surface. This is tileable, so it can be used as a background or wallpaper.
Source Eady
Derived from a JPG that was uploaded to Pixabay by ractapopulous
Source Firkin
Prismatic Geometric Pattern Background
Source GDJ
From an image on opengameart.org shared by rubberduck.
Source Firkin
From a drawing in 'In an Enchanted Island', William Mallock, 1892.
Source Firkin
A seamless pattern formed from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A simple but elegant classic. Every collection needs one of these.
Source Christopher Burton
More tactile goodness. This time in the form of some rough cloth.
Source Bartosz Kaszubowski
Classic vertical lines, in all its subtlety.
Source Cody L
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
This one needs to be used in small areas; you can see it repeat.
Source Luca
A seamless texture of an abstract wall colored in shades of light orange brown.
Source V. Hartikainen
Same as the black version, but now in shades of gray. Very subtle and fine grained.
Source Atle Mo
Inspired by a 1930s wallpaper pattern I saw on TV.
Source Firkin
From a drawing in 'Less Black than we're painted', James Payn, 1884.
Source Firkin
The name Paisley reminds me of an old British servant. That’s just me.
Source Swetha
Basket Fibers, Basket Texture, Braid Background style CC0 texture.
Source 1A-Photoshop
Prismatic Hypnotic Pattern 2 No Background
Source GDJ
A seamless web texture of "green stone".
Source V. Hartikainen
Sharp diamond pattern. A small 24x18px tile.
Source Tom Neal
One more updated pattern. Not really carbon fiber, but it’s the most popular pattern, so I’ll give you an extra choice.
Source Atle Mo