I know there is one here already, but this is sexy!
Source Gjermund Gustavsen
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Formed by distorting a JPG from PublicDomainPictures
Source Firkin
One week and it's Easter already. Thought I would revisit the decorated egg contest at inkscape community: http://forum.inkscapecommunity.com/index.php?topic=118.0
Source Lazur URH
Luxurious looking pattern (for a T-shirt maybe?) with a hint of green.
Source Simon Meek
ZeroCC tileable wood boards texture, photographed and made by me. CC0
Source Sojan Janso
Sweet and subtle white plaster with hints of noise and grunge.
Source Phil Maurer
More Japanese-inspired patterns, Gold Scales this time.
Source Josh Green
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Inspired by a pattern found in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Used correctly, this could be nice. Used in a bad way, all hell will break loose.
Source Atle Mo
A brown seamless wood texture in a form of stripe pattern. The result has turned out pretty well, in my opinion.
Source V. Hartikainen
If you’re sick of the fancy 3D, grunge and noisy patterns, take a look at this flat 2D brick wall.
Source Listvetra
Nothing like a clean set of bed sheets, huh?
Source Badhon Ebrahim
Floral patterns might not be the hottest thing right now, but you never know when you need it!
Source Lauren
The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
A light background pattern with diagonal stripes. Here's a simple light striped background for you.
Source V. Hartikainen
The image is a seamless pattern of a fishnet.
Source Yamachem
Remixed from a drawing in 'The Canadian horticulturist', 1892
Source Firkin
Fabric-ish patterns are close to my heart. French Stucco to the rescue.
Source Christopher Buecheler
Medium gray fabric pattern with 45-degree lines going across.
Source Atle Mo