This one looks like a cork panel. Feel free to use it as a tiled background on your blog or website.
Source V. Hartikainen
I took the liberty of using Dmitry’s pattern and made a version without perforation.
Source Atle Mo
From a drawing in 'Prose and Verse ', William Linton, 1836.
Source Firkin
Zero CC tileable yellow craft paper; scanned and made by me. CC0
Source Sojan Janso
A seamless pattern based on a square tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
Prismatic Hexagonalist Pattern No Background
Source GDJ
8 by 8 pixels, and just what the title says.
Source pixilated
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
A repeating background of beige (or is it more vanilla yellow) textured stripes. One more background with stripes.
Source V. Hartikainen
Sounds like something from World of Warcraft. Has to be good.
Source Tony Kinard
Prismatic Rounded Squares Grid 3 No Background
Source GDJ
Semi-light fabric pattern made out of random pixels in shades of gray.
Source Atle Mo
Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.
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
Fabric-ish patterns are close to my heart. French Stucco to the rescue.
Source Christopher Buecheler
A seamless web texture of "green stone".
Source V. Hartikainen
Prismatic Curved Diamond Pattern 8 No Background
Source GDJ
Prismatic Rounded Squares Grid 4 No Background
Source GDJ
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Dark blue concrete wall with some small dust spots.
Source Atle Mo
Sharp pixel pattern looking like some sort of fabric.
Source Dmitry