A seamless pattern from a tile made from a jpg on Pixabay. To get the tile select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
A heavy dark gray base, some subtle noise and a 45-degree grid makes this look like a pattern with a tactile feel to it.
Source Atle Mo
Remixed from a design seen on Pixabay. The basic tile can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Prismatic Abstract Line Art Pattern Background
Source GDJ
One more brick pattern. A bit more depth to this one.
Source Benjamin Ward
Bright Multicolored Floral Background by Karen Arnold from PDP.
Source GDJ
This one could be the shirt of a golf player. Angled lines in different thicknesses.
Source Olivier Pineda
Some rectangles, a bit of dust and grunge, plus a hint of concrete.
Source Atle Mo
This background pattern looks like bamboo to me. Feel free to download it for your website (for your blog perhaps?).
Source V. Hartikainen
Adapted from an image that was uploaded to Pixabay by Anerma.
Source Firkin
An interesting dark spotted pattern at an angle.
Source Hendrik Lammers
Have you wondered about how it feels to be buried alive? Here is the pattern for it.
Source Hendrik Lammers
Not the most creative name, but it’s a good all-purpose light background.
Source Dmitry
Luxurious looking pattern (for a T-shirt maybe?) with a hint of green.
Source Simon Meek
Inspired by the B&O Play, I had to make this pattern.
Source Atle Mo
Remixed from a design on Pixabay. To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
No, not the band but the pattern. Simple squares in gray tones, of course.
Source Atle Mo
This was formed by distorting an image of a background on Pixabay.
Source Firkin
This is a semi-dark pattern, sort of linen-y.
Source Sagive SEO
Remixed from a drawing in 'The Canadian horticulturist', 1892
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Sort of reminds me of those old house wallpapers.
Source Tish
Prismatic Curved Diamond Pattern 8 No Background
Source GDJ
The classic 45-degree diagonal line pattern, done right.
Source Jorick van Hees
A light gray wall or floor (you decide) of concrete.
Source Atle Mo