Could remind you a bit of those squares in Super Mario Bros, yeh?
Source Jeff Wall
Super simple but very nice indeed. Gray with vertical stripes.
Source Merrin Macleod
From a drawing in 'Artists and Arabs', Henry Blackburn, 1868
Source Firkin
Formed by distorting the inside front cover of 'Diversæ insectarum volatilium : icones ad vivum accuratissmè depictæ per celeberrimum pictorem', Jacob Hoefnagel, 1630.
Source Firkin
I guess this one is inspired by an office. A dark office.
Source Andrés Rigo.
You know I’m a sucker for these. Well-crafted paper pattern.
Source Mihaela Hinayon
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
One more sharp little tile for you. Subtle circles this time.
Source Blunia
Original minus the background
Source Firkin
After 1 comes 2, same but different. You get the idea.
Source Hendrik Lammers
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Remixed from a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
Inspired by a drawing in 'Kulturgeschichte', Freidrich Hellwald, 1896.
Source Firkin
You can never get enough of these tiny pixel patterns with sharp lines.
Source Designova
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
If you need a green background for your blog/website, try this one. Remember that Green Striped Background is seamlessly tileable.
Source V. Hartikainen
Prismatic Triangular Background Design Mark II 5
Source GDJ
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin