Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
An alternative colour scheme to the original seamless pattern.
Source Firkin
Can never have too many knitting patterns, especially as nice as this.
Source Victoria Spahn
A seamless design of flowers remixed from a jpg on Pixabay by Prawny.
Source Firkin
Here's a camo print with more tan and less green, such as might be used in a desert scenario. This is tileable, so it can be used as a wallpaper or background.
Source Eady
Dark squares with some virus-looking dots in the grid.
Source Hugo Loning
Prismatic Snowflakes Pattern No Background
Source GDJ
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Made by distorting a simple pattern using the 'sin waves' plugin for Paint.net and vectorising in Vector Magic
Source Firkin
A beautiful dark wood pattern, superbly tiled.
Source Omar Alvarado
He influenced us all. “Don’t be sad because it’s over. Smile because it happened.”
Source Atle Mo
A dark metallic background with a pattern of stamped dots. Here's a dark "metallic" background pattern for you.
Source V. Hartikainen
Prismatic Hexagonalist Pattern No Background
Source GDJ
Bumps, highlight and shadows – all good things.
Source Badhon Ebrahim
Prismatic Abstract Background Design
Source GDJ
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
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
From a drawing in 'Worsborough; its historical associations and rural attractions', Joseph Wilkinson, 1879.
Source Firkin
From a design found in 'History of the Virginia Company of London; with letters to and from the first Colony, never before printed', Edward Neill, 1869.
Source Firkin