Traced from a drawing in 'Household Stories from the Collection of the Brothers Grimm', Wilhelm Carl Grimm , 1882.
Source Firkin
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
A seamless pattern of dark bricks. Maybe it's not very realistic, but it looks good in my opinion.
Source V. Hartikainen
This could be a hippy vintage wallpaper.
Source Tileable Patterns
Remixed from a drawing in 'The March of Loyalty', Letitia MacClintock, 1884.
Source Firkin
A seamless pattern created from a square tile. To get the tile, select the pattern in Inkscape and use shift+alt+i.
Source Firkin
Everyone loves a diamond, right? Make your site sparkle.
Source AJ Troxell
This one is super crisp at 2X. Lined paper with some dust and scratches.
Source HQvectors
Remixed from a JPG that was uploaded to Pixabay by theasad121
Source Firkin
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Formed from decorative divider 184 in paint.net. Vectorised with Vector Magic.
Source Firkin
Dark, square, clean and tidy. What more can you ask for?
Source Jaromír Kavan
Prismatic Isometric Cube Wireframe Pattern No Background
Source GDJ
From a drawing in 'Bond Slaves. The story of a struggle.', Isabella Varley, 1893.
Source Firkin
Zero CC tileable seed texture, edited by me to be seamless from a Pixabay image. CC0
Source Sojan Janso
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
Can’t believe we don’t have this in the collection already! Slick woven pattern with crisp details.
Source Max Rudberg
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A pattern derived from repeating unit cells each derived from part of a fractal rendering in paint.net.
Source Firkin
Geometric triangles seem to be quite hot these days.
Source Pixeden
Hexagonal dark 3D pattern. What more can you ask for?
Source Norbert Levajsics
Sharp pixel pattern looking like some sort of fabric.
Source Dmitry