Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Prismatic Groovy Concentric Background 5 No Black
Source GDJ
Remixed from a drawing in 'Analecta Eboracensia', Thomas Widdrington, 1897.
Source Firkin
A free background pattern with abstract green tiles.
Source V. Hartikainen
A seamless pattern formed from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
No relation to the band, but damn it’s subtle!
Source Thomas Myrman
From an image on opengameart.org shared by rubberduck.
Source Firkin
Remixed from a drawing in 'A Girl in Ten Thousand', Elizabeth Meade, 1896.
Source Firkin
Alternative colour scheme. Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
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
Got some felt in my mailbox today, so I scanned it for you to use.
Source Atle Mo
This beige background pattern resembles a concrete wall with engravings or something similar to it.
Source V. Hartikainen
White fabric looking texture with some nice random wave features.
Source Hendrik Lammers
Can’t believe we don’t have this in the collection already! Slick woven pattern with crisp details.
Source Max Rudberg
From a drawing in 'Studies for Stories', Jean Ingelow, 1864.
Source Firkin
Used a cherry by doctormo to make this seamless pattern
Source Firkin
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
A very slick dark rubber grip pattern, sort of like the grip on a camera.
Source Sinisha
Could be paper, could be a Polaroid frame – up to you!
Source Chaos
You can never get enough of these tiny pixel patterns with sharp lines.
Source Designova
A free green background pattern with a pattern of rhombuses on a seamless texture. Feel free to use it as a tiled background image on your web site.
Source V. Hartikainen
A fun-looking elastoplast/band-aid pattern. A hint of orange tone in this one.
Source Josh Green
The image depicts an edo-era pattern called "same-komon" or "鮫小紋"which looks like a shark skin.The "same" in Japanese means shark in English.
Source Yamachem