I guess this is inspired by the city of Ravenna in Italy and its stone walls.
Source Sentel
A seamless paper background colored in pale yellow.
Source V. Hartikainen
Remixed from a drawing in 'Paul's Sister', Frances Peard, 1889.
Source Firkin
This seamless light brown background texture resembles a wallpaper with vertical stripes. One way to use it is as a tiled background on web sites.
Source V. Hartikainen
Continuing the geometric trend, here is one more.
Source Mike Warner
Prismatic Groovy Concentric Background 3 No Black
Source GDJ
This could be a hippy vintage wallpaper.
Source Tileable Patterns
Can never have too many knitting patterns, especially as nice as this.
Source Victoria Spahn
Just like your old suit, all striped and smooth.
Source Alex Berkowitz
Detailed but still subtle and quite original. Lovely gray shades.
Source Kim Ruddock
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Coming in at 666x666px, this is an evil big pattern, but nice and soft at the same time.
Source Atle Mo
It’s an egg, in the form of a pattern. This really is 2012.
Source Paul Phönixweiß
Formed by distorting a JPG from PublicDomainPictures
Source Firkin
Sharp pixel pattern looking like some sort of fabric.
Source Dmitry
Number 3 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Background Wall, Art Abstract, Blue Well & CC0 texture.
Source Ractapopulous
Colour version of the original pattern.
Source Firkin
The file was named striped lens, but hey – Translucent Fibres works too.
Source Angelica
One more sharp little tile for you. Subtle circles this time.
Source Blunia
A seamlessly repeating background pattern of wood. The image is procedurally generated, and, I think, it's turned out quite well.
Source V. Hartikainen
A fun-looking elastoplast/band-aid pattern. A hint of orange tone in this one.
Source Josh Green
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett