Another fairly simple design drawn in Paint.net and vectorized in Inkscape.
Source Firkin
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Remixed from a PNG that was uploaded to Pixabay by gingertea
Source Firkin
It almost looks a bit blurry, but then again, so are fishes.
Source Petr Šulc
Looks a bit like concrete with subtle specks spread around the pattern.
Source Mladjan Antic
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Semi-light fabric pattern made out of random pixels in shades of gray.
Source Atle Mo
This is lovely, just the right amount of subtle noise, lines and textures.
Source Richard Tabor
This ladies and gentlemen, is texturetastic! Love it.
Source Adam Pickering
This was formed by distorting an image of a background on Pixabay.
Source Firkin
A rusty grunge background for websites. Feel free to use it in your site's theme.
Source V. Hartikainen
This is sort of fresh, but still feels a bit old school.
Source Martuchox
Pass parameters to the URL or edit the source code variables to configure the graph paper for the division desired.
Source JayNick
Derived from elements found in a floral ornament drawing on Pixabay.
Source Firkin
I took the liberty of using Dmitry’s pattern and made a version without perforation.
Source Atle Mo
Clover with background for St. Patrick's Day. Add to a card with a doily, ribbon, a leprechaun or other embellishments.
Source BAJ
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Not the Rebel alliance, but a dark textured pattern.
Source Hendrik Lammers
Heavily remixed from a drawing in 'Barbara Leybourne; a story of eighty years ago', Sarah Hamer, 1889.
Source Firkin
Prismatic Geometric Tessellation Pattern No Background
Source GDJ
Paper pattern with small dust particles and 45-degree strokes.
Source Atle Mo
f you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
Could remind you a bit of those squares in Super Mario Bros, yeh?
Source Jeff Wall