Utilising some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
A huge one at 800x600px. Made from a photo I took going home after work.
Source Atle Mo
This is a seamless pattern of regular hexagon which has a honeycomb structure.
Source Yamachem
People seem to enjoy dark patterns, so here is one with some circles.
Source Atle Mo
Alternative colour scheme for the original floral pattern.
Source Firkin
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Super dark, crisp and detailed. And a Kill Bill reference.
Source Badhon Ebrahim
From a drawing in 'Cowdray: the history of a great English House', Julia Roundell, 1884.
Source Firkin
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
This one is amazing, truly original. Go use it!
Source Viahorizon
A repeating background with wood/straw like texture.
Source V. Hartikainen
This one needs to be used in small areas; you can see it repeat.
Source Luca
From a drawing in 'Friend or Fortune? The story of a strange year', Robert Overton, 1897.
Source Firkin
Turn your site into a dragon with this great scale pattern.
Source Alex Parker
Looks like a technical drawing board: small squares forming a nice grid.
Source We Are Pixel8
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
Classic 45-degree pattern, light version.
Source Luke McDonald
A good starting point for a cardboard pattern. This would work well in a variety of colors.
Source Atle Mo
From a drawing in 'Hyde Park from Domesday-Book to date', John Ashton, 1896.
Source Firkin