Might not be super subtle, but quite original in its form.
Source Alex Smith
Fix side and a seamless pattern formed from circles.
Source SliverKnight
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
This one is so simple, yet so good. And you know it. Has to be in the collection.
Source Gluszczenko
Seamless Prismatic Pythagorean Line Art Pattern No Background. A seamless pattern that includes the original tile (go to Objects / Pattern / Pattern To Objects in Inkscape's menu to extract it).
Source GDJ
Vertical lines with a bumpy, yet crisp, feel to it.
Source Raasa
A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Colour version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
Prismatic Snowflakes Pattern No Background
Source GDJ
Love me some light mesh on a Monday. Sharp.
Source Wilmotte Bastien
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Lovely pattern with some good-looking non-random noise lines.
Source Zucx
This one looks like a cork panel. Feel free to use it as a tiled background on your blog or website.
Source V. Hartikainen
A topographic map like this has actually been requested a few times, so here you go!
Source Sam Feyaerts
Brushed aluminum, in a bright gray version. Lovely 2X as well.
Source Andre Schouten
Real snow that tiles, not easy. This is not perfect, but an attempt.
Source Atle Mo
To get the repeating unit, select the rectangle in Inkscape and use shift+alt+i
Source Firkin
The original enhanced with some gradients.
Source Firkin
The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
With a name like this, it has to be hot. Diagonal lines in light shades.
Source Isaac
This is the remix of "Background pattern 115" uploaded by "Firkin".Thanks.
Source Yamachem
This one needs to be used in small areas; you can see it repeat.
Source Luca
Floral patterns might not be the hottest thing right now, but you never know when you need it!
Source Lauren