This background has abstract texture with some similarities to wood.
Source V. Hartikainen
This one is amazing, truly original. Go use it!
Source Viahorizon
A seamless background drawn in Paint.net and vectorised with Vector Magic. The starting point was a photograph of drinking straws from Pixabay.
Source Firkin
Colorful Floral Background 3 No Black
Source GDJ
Sharp pixel pattern looking like some sort of fabric.
Source Dmitry
Got some felt in my mailbox today, so I scanned it for you to use.
Source Atle Mo
This is a remix of "geometrical pattern 01".
Source Yamachem
Prismatic Groovy Concentric Background 2
Source GDJ
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
This ladies and gentlemen, is texturetastic! Love it.
Source Adam Pickering
Nice little grid. Would work great as a base on top of some other patterns.
Source Arno Gregorian
Retro Circles Background 8 No Black
Source GDJ
Did anyone say The Hoff? This pattern is in no way related to Baywatch.
Source Josh Green
More in the paper realm, this time with fibers.
Source Jorge Fuentes
Same as gray sand but lighter. A sandy pattern with small light dots, and some angled strokes.
Source Atle Mo
A repeating background with wood/straw like texture.
Source V. Hartikainen
He influenced us all. “Don’t be sad because it’s over. Smile because it happened.”
Source Atle Mo
A seamlessly repeating background pattern of wood. The image is procedurally generated, and, I think, it's turned out quite well.
Source V. Hartikainen
You know you can’t get enough of these linen-fabric-y patterns.
Source James Basoo
An emulated “transparent” background pattern, like that of all kinds of computer graphics software.
Source AdamStanislav
Not so subtle. These tileable wood patterns are very useful.
Source Elemis
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Curved Diamond Pattern 8 No Background
Source GDJ