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
A bit strange this one, but nice at the same time.
Source Diogo Silva
Sharp pixel pattern looking like some sort of fabric.
Source Dmitry
Adapted from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Black And White Floral Pattern Background from PDP.
Source GDJ
A new take on the black linen pattern. Softer this time.
Source Atle Mo
The act or state of corrugating or of being corrugated, a wrinkle; fold; furrow; ridge.
Source Anna Litvinuk
Geometric triangles seem to be quite hot these days.
Source Pixeden
Remixed from a drawing in 'Maidenhood; or, the Verge of the Stream', Laura Jewry, 1876.
Source Firkin
Carbon fiber is never out of fashion, so here is one more style for you.
Source Alfred Lee
This one needs to be used in small areas; you can see it repeat.
Source Luca
Someone was asking about how to achieve a fur pattern at #inkscape irc so tried to make a filter on it. Flood filled fractal noises rigged together. May someone find a good use for these.
Source Lazur URH
These dots are already worn for you, so you don’t have to.
Source Matt McDaniel
This is a grid, only it’s noisy. You know. Reminds you of those printed grids you draw on.
Source Vectorpile
White little knobs, coming in at 10x10px. Sweet!
Source Amos
A background pattern with green vertical stripes. A new striped background pattern. This time a green one.
Source V. Hartikainen
Zero CC tileable yellow craft paper; scanned and made by me. CC0
Source Sojan Janso
A pale yellow background pattern with vertical stripes. The stripes are partially faded. I think this background image turned out pretty well, especially those faded stripes.
Source V. Hartikainen
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
Dark, crisp and subtle. Tiny black lines on top of some noise.
Source Wilmotte Bastien
A seamless background tile of aged paper with shabby look.
Source V. Hartikainen
A simple but elegant classic. Every collection needs one of these.
Source Christopher Burton
From a drawing in 'In an Enchanted Island', William Mallock, 1892.
Source Firkin
A huge one at 800x600px. Made from a photo I took going home after work.
Source Atle Mo
Prismatic Groovy Concentric Background No Black
Source GDJ
Zero CC tileable ground (#2) cracked, crackled texture, made by me. CC0
Source Sojan Janso
A free seamless texture of reptile skin colored in a dark brown color. As always, you may use it as a repeated background image in your web design works, or for any other purposes.
Source V. Hartikainen