A new one called white wall, not by me this time.
Source Yuji Honzawa
This background pattern looks like bamboo to me. Feel free to download it for your website (for your blog perhaps?).
Source V. Hartikainen
Kaleidoscope Prismatic Abstract No Background
Source GDJ
Medium gray pattern with small strokes to give a weave effect.
Source Catherine
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
This one takes you back to math class. Classic mathematic board underlay.
Source Josh Green
Prismatic Groovy Concentric Background 2 No Black
Source GDJ
The image depicts a seamless pattern of a fishnet with a plenty of fish.It may be a lucky charm for fishermen.
Source Yamachem
Nice and simple crossed lines in dark gray tones.
Source Stefan Aleksić
Just a nice looking textured pattern with faded blue stripes. Well, that's it for today... one background a day, as usual.
Source V. Hartikainen
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
The tile can be had by selecting the rectangle in Inkscape and using shift+alt+i. Remixed from a drawing in 'Flowers of Song', Frederick Weatherly, 1895.
Source Firkin
I know there is one here already, but this is sexy!
Source Gjermund Gustavsen
Prismatic Polka Dots 3 No Background
Source GDJ
This seamless pattern consists of a blue grid on a yellow background.
Source V. Hartikainen
A frame using leaves from an image that was uploaded to Pixabay by mayapujiati
Source Firkin
You know I’m a sucker for these. Well-crafted paper pattern.
Source Mihaela Hinayon
A lovely light gray pattern with stripes and a dash of noise.
Source V. Hartikainen
Remix from a drawing in 'Ostatnie chwile powstania styczniowego', Zygmunt Sulima, 1887.
Source Firkin
ZeroCC tileable stone texture, edited from pixabay, CC0
Source Sojan Janso
A smooth mid-tone gray, or low contrast if you will, linen pattern.
Source Jordan Pittman
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Clean and crisp lines all over the place. Wrap it up with this one.
Source Dax Kieran