Recreated from a pattern found in 'Az Osztrák-Magyar Monarchia irásban és képben', 1882. To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Utilising some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
One more in the line of patterns inspired by Japanese/Asian styles. Smooth.
Source Kim Ruddock
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
Actually, there's no clouds in it, but I think it looks quite nice.
Source V. Hartikainen
Sort of reminds me of those old house wallpapers.
Source Tish
A repeating gloomy background image. This one consists of a pattern of black chains layered on top of a dark textured background.
Source V. Hartikainen
Prismatic Curved Diamond Pattern 4 No Background
Source GDJ
A background formed from an image of an old tile on the New York Metropolitan Museum of Art website. To get the base tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Remixed from a drawing in 'The March of Loyalty', Letitia MacClintock, 1884.
Source Firkin
People seem to enjoy dark patterns, so here is one with some circles.
Source Atle Mo
Zero CC asphalt, pavement, texture, photographed and made by me. CC0 WARNING I FOUND A SEAM ON THIS TEXTURE
Source Sojan Janso
Derived from an image that was uploaded to Pixabay by mdmelo.
Source Firkin
Free tiled background with colorful stripes and white splatter.
Source V. Hartikainen
From a tile that can be had by selecting the rectangle in Inkscape and using 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 seamless pattern drawn originally in Paint.net by distorting a slice of background pattern 116 and copying the resulting triangle numerous times.
Source Firkin
Prismatic Snowflakes Pattern No Background
Source GDJ
Remixed from a drawing that was uploaded to Pixabay by ractapopulous
Source Firkin
Dark, square, clean and tidy. What more can you ask for?
Source Jaromír Kavan
Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Sounds French. Some 3D square diagonals, that’s all you need to know.
Source Graphiste
Prismatic Hypnotic Pattern No Background
Source GDJ
A free seamless background image with abstract texture of green "curtain".
Source V. Hartikainen
Bumps, highlight and shadows – all good things.
Source Badhon Ebrahim
The name is totally random, but hey, it sounds good.
Source Atle Mo
Prismatic Polka Dots Mark II 2 No Background
Source GDJ