Quilt #651
 Light  CC BY-SA 3.0

Not sure what this is, but it looks good!

Source Josh Green

 More Textures
Prismatic Curved Diamond Pattern 6 No Background #545
 Dark  CC 0

Prismatic Curved Diamond Pattern 6 No Background

Source GDJ

Light Wall #1265
 Wall  CC 0

Zerro CC tillable texture of stones photographed and made by me. CC0

Source Sojan Janso

Prismatic Geometric Tessellation Pattern No [email protected] #552
 Noise  CC 0

Prismatic Geometric Tessellation Pattern No Background

Source GDJ

Diamond Upholstery #767
 Diamond  CC BY-SA 3.0

A re-make of the Gradient Squares pattern.

Source Dimitar Karaytchev

Leafy pattern 4 #1915
 Green  CC 0

Remixed from a drawing in 'Hungary. A guide book. By several authors', 1890.

Source Firkin

White Wall #1105
 Wall  CC BY-SA 3.0

Looks like an old wall. I guess that’s it then?

Source Viahorizon

[email protected] #295
 Wall  CC BY-SA 3.0

A nice and simple gray stucco material. Great on its own, or as a base for a new pattern.

Source Bartosz Kaszubowski

Grunge Wall #81
 Wall  CC BY-SA 3.0

Light gray grunge wall with a nice texture overlay.

Source Adam Anlauf

Pattern & Plywood #1349
 Wood  CC 0

CC0 for Free, hope you like it.

Source Yethiel

"Animal Tracks", Background Pattern #1225
 Yellow  CC BY-SA 3.0

A seamless pale yellow paper background with a pattern of animal tracks.

Source V. Hartikainen

cloth texture 03 #2447
 Fabric  CC 0

This is a blue seamless cloth texture.

Source Yamachem

Flowery pattern 3 (BW) #2331
 Dark  CC 0

Adapted from a jpg on Pixabay.

Source Firkin

Boiler Plate Rust & Red #1662
 Metal  CC 0

Metal-Rusty. CC0 License.

Source Unknow

Dirty Old Black Shirt #853
 Dark  CC BY-SA 3.0

Used in small doses, this could be a nice subtle pattern. Used on a large surface, it’s dirty!

Source Paul Reulat

Diamond [email protected] #686
 Diamond  CC BY-SA 3.0

Everyone loves a diamond, right? Make your site sparkle.

Source AJ Troxell

Joined spirals pattern #2482
 Yellow  CC 0

The starting point for this was drawn on the web site steamcoded.org/PolyskelionMaker.svg

Source Firkin

Dotnoise Light Grey #308
 Wall  CC BY-SA 3.0

Sort of like the back of a wooden board. Light, subtle, and stylish, just the way we like it!

Source Nikolalek

Decorative divider 283 #1856
 Dark  CC 0

From a drawing in 'In an Enchanted Island', William Mallock, 1892.

Source Firkin

White Brick Wall #593
 Wall  CC BY-SA 3.0

If you’re sick of the fancy 3D, grunge and noisy patterns, take a look at this flat 2D brick wall.

Source Listvetra

Leafy pattern 11 (colour) #1763
 Green  CC 0

From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.

Source Firkin

Page ornament 22 #2358
 Dark  CC 0

From a drawing in 'A Rolling Stone. A tale of wrongs and revenge', John Hartley, 1878.

Source Firkin

Noisy [email protected] #960
 Gray  CC BY-SA 3.0

This is a grid, only it’s noisy. You know. Reminds you of those printed grids you draw on.

Source Vectorpile

Background pattern 263 #2073
 Pink  CC 0

Actually remixed from a pattern on Pixabay. But then noticed a very similar one on Openclipart.org uploaded by btj51q2.

Source Firkin

Subtle Zebra 3D #623
 Stripes  CC BY-SA 3.0

It’s a subtle zebra, in 3D. Oh yes!

Source Mike Warner

Fleurs-de-lys pattern 2 (colour) #2204
 Colorful  CC 0

Colour version of the original pattern inspired by the front cover of 'Old and New Paris', Henry Edwards, 1894.

Source Firkin

Background pattern 302 (colour 2) #1887
 Green  CC 0

Alternative colour scheme to the original.

Source Firkin

seigaiha subtle color #2278
 Pink  CC 0

This is a remix of "blue wave-seigaiha".I hope this subtle color version of Seigaiha would be suitable for background .

Source Yamachem

Nami #575
 Dark  CC BY-SA 3.0

Not sure if this is related to the Nami you get in Google image search, but hey, it’s nice!

Source Dertig Media

Floral pattern 7 #2291
 Pink  CC 0

Utilising some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.

Source Firkin