Paper [email protected] #32
 Paper  CC BY-SA 3.0

Light gray paper pattern with small traces of fiber and some dust.

Source Atle Mo

 More Textures
Dark Denim [email protected] #596
 Dark  CC BY-SA 3.0

This is the third pattern called Dark Denim, but hey, we all love them!

Source Brandon Jacoby

Floral background 16 #1914
 Dark  CC 0

Floral background 16

Source Firkin

Stone Wall & Yellow #1574
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

French [email protected] #698
 Paper  CC BY-SA 3.0

Fabric-ish patterns are close to my heart. French Stucco to the rescue.

Source Christopher Buecheler

Norwegian [email protected] #858
 Light  CC BY-SA 3.0

I’m not going to lie – if you submit something with the words Norwegian and Rose in it, it’s likely I’ll publish it.

Source Fredrik Scheide

Grunge [email protected] #82
 Wall  CC BY-SA 3.0

Light gray grunge wall with a nice texture overlay.

Source Adam Anlauf

Abstract Stars Geometric Pattern Prismatic No [email protected] #810
 Noise  CC 0

Abstract Stars Geometric Pattern Prismatic No Background

Source GDJ

Ribbon pattern 2 (version 2, colour 6) #2034
 Pink  CC 0

The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.

Source Firkin

Seamless Gray Stone Background #1028
 Stone  CC BY-SA 3.0

This background image has seamless texture that resembles a surface of gray stone.

Source V. Hartikainen

Prismatic Geometric Pattern Background 2 No [email protected] #784
 Noise  CC 0

Prismatic Geometric Pattern Background 2 No Black

Source GDJ

Wood 8b #1453
 Wood  CC 0

Gamedev - Wood Textures. CC0 License.

Source Davit Masia

fawn spot pattern #2472
 Dark  CC 0

The image depicts a Japanese Edo pattern called "kanoko or 鹿の子" meaning "fawn" which has a fur with small white spots.

Source Yamachem

Sponge A2-5 #2128
 Wall  CC 0

CC0 textures, backgrounds.

Source SliverKnight

Rough [email protected] #692
 Fabric  CC BY-SA 3.0

The classic 45-degree diagonal line pattern, done right.

Source Jorick van Hees

Leafy pattern 11 (colour) #1763
 Green  CC 0

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

Source Firkin

Prismatic Abstract Geometric Background 4 No [email protected]@2X #444
 Dark  CC 0

Prismatic Abstract Geometric Background 4

Source GDJ

First Aid [email protected] #702
 Fabric  CC BY-SA 3.0

No, not the band but the pattern. Simple squares in gray tones, of course.

Source Atle Mo

Background pattern 215 (colour 2) #2370
 Blue  CC 0

A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.

Source Firkin

Metal Pole Rusty & Green #1653
 Metal  CC 0

Metal-Rusty. CC0 License.

Source Unknow

Stone Wall & Yellow #1491
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Kinda [email protected] #1063
 Gray  CC BY-SA 3.0

A nice one indeed, but I have a feeling we have it already? If you spot a copy, let me know on Twitter.

Source Graphiste

Handmade [email protected] #38
 Paper  CC BY-SA 3.0

White handmade paper pattern with small bumps.

Source Marquis

Blue Wallpaper For Websites #910
 Stripes  CC BY-SA 3.0

A blue background wallpaper for websites. It has a seamless texture with vertical stripes. It looks quite nice not only when using as a tiled background on websites, but also on computer desktops.

Source V. Hartikainen

Small Steps #1312
 Light  CC BY-SA 3.0

This ons is quite old school looking. Retro, even. I like it.

Source Arno Declercq

[email protected] #658
 Paper  CC BY-SA 3.0

Nicely crafted paper pattern, although a bit on the large side (500x593px).

Source Blaq Annabiosis

Background pattern 336 (colour 3) #1719
 Blue  CC 0

Formed by distorting the inside front cover of 'Diversæ insectarum volatilium : icones ad vivum accuratissmè depictæ per celeberrimum pictorem', Jacob Hoefnagel, 1630.

Source Firkin

Stone Wall & Red #1506
 Red  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Wavy background #2023
 Pink  CC 0

CC0 and a seamless pattern from a tile drawn in Paint.net .

Source SliverKnight

Flowery pattern 3 (BW) #2331
 Dark  CC 0

Adapted from a jpg on Pixabay.

Source Firkin