Lined Paper #1034
 Light  CC BY-SA 3.0

I know there is one here already, but this is sexy!

Source Gjermund Gustavsen

 More Textures
Stone Wall & Yellow #1555
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Prismatic Diamond Background [email protected] #811
 Diamond  CC 0

Prismatic Diamond Background 6

Source GDJ

Dungeons & Flagons 2 #1418
 Diamond  CC 0

Gamedev - Floors Textures. CC0 License.

Source Davit Masia

Nistri #773
 Stripes  CC BY-SA 3.0

No idea what Nistri means, but it’s a crisp little pattern nonetheless.

Source Markus Reiter

Dark #1258
 Paper  CC 0

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

Source Sojan Janso

Dungeons & Flagons 3 #1419
 Diamond  CC 0

Gamedev - Floors Textures. CC0 License.

Source Davit Masia

Cream Dust #980
 Light  CC BY-SA 3.0

I love cream! 50x50px and lovely in all the good ways.

Source Thomas Myrman

Cloth & Gray #1622
 Fabric  CC 0

Fabric. CC0 License.

Source Unknow

Light [email protected] #696
 Grid  CC BY-SA 3.0

Submitted as a black pattern, I made it light and a few steps more subtle.

Source Andy

Floral background 17 (colour 2) #1850
 Orange  CC 0

Remixed from a JPG that was uploaded to Pixabay by theasad121

Source Firkin

Prismatic Triangular Seamless Pattern III With Background #273
 Dark  CC 0

Prismatic Triangular Seamless Pattern III With Background

Source GDJ

Seamless Colorful Floral Pattern Background #256
 Fabric  CC 0

PDP

Source GDJ

Skin Side Up #847
 Light  CC BY-SA 3.0

White fabric looking texture with some nice random wave features.

Source Hendrik Lammers

Floral background 22 (colour) #1779
 Green  CC 0

From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.

Source Firkin

Dark Steel Grid Background Pattern #1081
 Metal  CC BY-SA 3.0

Here's a dark background pattern that contains a steel grid pattern as a texture. Use it as a website background or for other purposes. It's free!

Source V. Hartikainen

Stone Wall & Purple #1568
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Leafy pattern 4 #1915
 Green  CC 0

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

Source Firkin

Asfault 5 #1384
 Dark  CC 0

Gamedev - Asphalt textures. CC0 License.

Source Davit Masia

Background pattern 201 #2501
 Grid  CC 0

A pattern formed from a squared tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.

Source Firkin

Fabric pattern 2 #2396
 Fabric  CC 0

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

Large Leather #649
 Paper  CC BY-SA 3.0

More leather, and this time it’s bigger! You know, in case you need that.

Source Elemis

Wall #1248
 Wall  CC 0

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

Source Sojan Janso

Stone Wall & Dark #1493
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Pattern & Iron Net #1618
 Wall  CC 0

Fence. CC0 License.

Source Unknow

Subtle [email protected] #926
 Light  CC BY-SA 3.0

Super subtle indeed, a medium gray pattern with tiny dots in a grid.

Source Designova

Background pattern #2000
 Dark  CC 0

Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i

Source Firkin

Paisley Background #495
 Light  CC 0

Paisley Background

Source GDJ

Floors & Black #1597
 Wall  CC 0

Floors-Tiles. CC0 License.

Source Unknow

Prismatic Geometric Pattern Variation 2 With Background #471
 Noise  CC 0

Prismatic Geometric Pattern Variation 2 With Background

Source GDJ

Prismatic Polka Dots Mark II 3 No [email protected] #535
 Noise  CC 0

Prismatic Polka Dots Mark II 3 No Background

Source GDJ