Colored maple leaves scattered on a surface. This is tileable, so it can be used as a background or wallpaper.
Source Eady
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Here's a bluish gray striped background pattern for use on web sites.
Source V. Hartikainen
Classy golf-pants pattern, or crossed stripes if you will.
Source Will Monson
Sharp pixel pattern looking like some sort of fabric.
Source Dmitry
First pattern tailor-made for Retina, with many more to come. All the old ones are upscaled, in case you want to re-download.
Source Atle Mo
Prismatic Chevrons Pattern 5 With Background
Source GDJ
A heavy hitter at 400x400px, but lovely still.
Source Breezi
A slightly grainy paper pattern with small horizontal and vertical strokes.
Source Atle Mo
Inspired by a 1930s wallpaper pattern I saw on TV.
Source Firkin
ZeroCC tileabel stone granite texture, edited from pixabay. CC0
Source Sojan Janso
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
I love cream! 50x50px and lovely in all the good ways.
Source Thomas Myrman
A seamless paper background texture colored in pale yellow. This seamless texture is ideal for those who need a yellow background image for their website. The texture resembles paper.
Source V. Hartikainen
Prismatic Groovy Concentric Background 2 No Black
Source GDJ
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A seamlessly tile-able grunge background image.
Source V. Hartikainen
A free seamless background pattern for use on websites.
Source V. Hartikainen
Here's a brown background pattern with subtle stripes. I hope you'll like the color. If not, feel free to change it using an image editor, if you know how of course. Personally, I'm using GIMP to create these backgrounds.
Source V. Hartikainen