The image depicts a seamless pattern of a Japanese family crest called "chidori" in Japanese .A chidori in Japanese means a plover in English.
Source Yamachem
This is a remix of "geometrical pattern 01".
Source Yamachem
Pixel by pixel, sharp and clean. Very light pattern with clear lines.
Source M.Ashok
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Same as Silver Scales, but in black. Turn your site into a dragon with this great scale pattern.
Source Alex Parker
Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
A grayscale fabric pattern with vertical lines of stitch holes.
Source V. Hartikainen
Abstract Tiled Background Extended 6
Source GDJ
Dark, crisp and subtle. Tiny black lines on top of some noise.
Source Wilmotte Bastien
A seamless marble-like texture colored in light blue.
Source V. Hartikainen
Classic vertical lines, in all its subtlety.
Source Cody L
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
This background pattern looks like bamboo to me. Feel free to download it for your website (for your blog perhaps?).
Source V. Hartikainen
A white version of the very popular linen pattern.
Source Ant Ekşiler
Colored maple leaves scattered on a surface. This is tileable, so it can be used as a background or wallpaper.
Source Eady
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
All good things come in threes, so I give you the third in my little concrete wall series.
Source Atle Mo
Light gray version of the Binding pattern that looks a bit like fabric.
Source Newbury
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Simple wide squares with a small indent. Fits all.
Source Petr Šulc.
A seamless pattern drawn originally in Paint.net by distorting a slice of background pattern 116 and copying the resulting triangle numerous times.
Source Firkin
This one could be the shirt of a golf player. Angled lines in different thicknesses.
Source Olivier Pineda
Same as Silver Scales, but in black. Turn your site into a dragon with this great scale pattern.
Source Alex Parker