The name alone is awesome, but so is this sweet dark pattern.
Source Federica Pelzel
Utilising a bird from s-light and some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
A light gray fabric pattern with faded vertical stripes.
Source V. Hartikainen
Simple gray checkered lines, in light tones.
Source Radosław Rzepecki
A beautiful dark wood pattern, superbly tiled.
Source Omar Alvarado
Prismatic Groovy Concentric Background 2
Source GDJ
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Real snow that tiles, not easy. This is not perfect, but an attempt.
Source Atle Mo
This is so subtle I hope you can see it! Tweak at will.
Source Alexandre Naud
A simple example on using clones. You can generate a nice base for a pattern fill quickly with it.
Source Lazur URH
From a drawing in 'Maidenhood; or, the Verge of the Stream', Laura Jewry, 1876.
Source Firkin
Sometimes simple really is what you need, and this could fit you well.
Source Factorio.us Collective
One can never have too few rice paper patterns, so here is one more.
Source Atle Mo
Submitted by DomainsInfo – wtf, right? But hey, a free pattern.
Source DomainsInfo
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Zero CC tileable Laminate wood texture, photographed and made by me. CC0
Source Sojan Janso
From a drawing in 'The Quiver of Love', Walter Crane, 1876
Source Firkin
Prismatic Groovy Concentric Background 5
Source GDJ
A textured blue background pattern with vertical stripes.
Source V. Hartikainen
With a name this awesome, how can I go wrong?
Source Nikolay Boltachev
From a drawing in 'Resa i Afrika, genom Angola, Ovampo och Damaraland', P. Moller, 1899.
Source Firkin
An interesting dark spotted pattern at an angle.
Source Hendrik Lammers
Inspired by the B&O Play, I had to make this pattern.
Source Atle Mo
A re-make of the Gradient Squares pattern.
Source Dimitar Karaytchev