Looks like a technical drawing board: small squares forming a nice grid.
Source We Are Pixel8
A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.
Source Firkin
Retro Circles Background 8 No Black
Source GDJ
One can never have too few rice paper patterns, so here is one more.
Source Atle Mo
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
You guessed it – looks a bit like cloth.
Source Peax Webdesign
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Looks like a technical drawing board: small squares forming a nice grid.
Source We Are Pixel8
Remixed from a drawing in 'Hungary. A guide book. By several authors', 1890.
Source Firkin
This makes me wanna shoot some pool! Sweet green pool table pattern.
Source Caveman
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
From a drawing in 'Hundert Jahre in Wort und Bild', S. Stefan, 1899.
Source Firkin
A seamless web texture of "green stone".
Source V. Hartikainen
A nice and simple gray stucco material. Great on its own, or as a base for a new pattern.
Source Bartosz Kaszubowski
A very dark asfalt pattern based off of a photo taken with my iPhone.
Source Atle Mo
Derived from an image that was uploaded to Pixabay by Darkmoon1968
Source Firkin
Prismatic Abstract Background Design
Source GDJ
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Pixel by pixel, sharp and clean. Very light pattern with clear lines.
Source M.Ashok
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Prismatic Polyskelion Pattern No Background
Source GDJ
Sort of reminds me of those old house wallpapers.
Source Tish
Remixed from a drawing in 'Paul's Sister', Frances Peard, 1889.
Source Firkin
Bright Multicolored Floral Background by Karen Arnold from PDP.
Source GDJ
Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton