Beechwood #1295
 Wood  CC 0

ZeroCC tileable beechwood wood texture, generated in Neo Texture Edit by me. CC0

Source Sojan Janso

 More Textures
Use Your Illusion #917
 Dark  CC BY-SA 3.0

A dark one with geometric shapes and dotted lines.

Source Mohawk Studios

Colorful Stripes Background #992
 Stripes  CC BY-SA 3.0

Free tiled background with colorful stripes and white splatter.

Source V. Hartikainen

Geometric pattern #2005
 Grid  CC 0

A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i

Source Firkin

Background pattern 66 #195
 Wall  CC 0

A background pattern drawn in Inkscape.

Source Firkin

Green Web Background, Seamless tile #1332
 Green  CC BY-SA 3.0

Green Web Background, Seamless tile.

Source V. Hartikainen

Fabric pattern (colour 2) #2401
 Fabric  CC 0

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

Dark [email protected] #40
 Dark  CC BY-SA 3.0

Very dark pattern with some noise and 45-degree lines.

Source Stefan Aleksić

Ecailles #1042
 Light  CC BY-SA 3.0

Almost like little fish shells, or dragon skin.

Source Graphiste

[email protected] #676
 Diamond  CC BY-SA 3.0

I’m guessing this is related to the Sony Vaio? It’s a nice pattern no matter where it’s from.

Source Zigzain

Tessellation 15 (colour 4) #2219
 Green  CC 0

The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.

Source Firkin

Shapes pattern 2 (colour 3) #2239
 Blue  CC 0

A background made up of shapes.

Source Firkin

Background pattern 41 #262
 Fabric  CC 0

A seamless pattern the starting point for which was a 'light rays' rendering in Paint.net.

Source Firkin

Cardboard Flat #961
 Gray  CC BY-SA 3.0

Not a flat you live inside, like in the UK – but a flat piece of cardboard.

Source Appleshadow

Axiom Pattern #330
 Grid  CC BY-SA 3.0

Not even 1kb, but very stylish. Gray thin lines.

Source Struck Axiom

Wood Texgen 2 #1436
 Wood  CC 0

Gamedev - Wood Textures. CC0 License.

Source Davit Masia

Page ornament 21 #2361
 Dark  CC 0

From a design in 'Storia del Palazzo Vecchio in Firenze', Aurelio Gotti, 1889.

Source Firkin

Raindrop-seamless pattern #2558
 Blue  CC 0

This is the remix of an OCAL clipart called "Rain on Window" uploaded by "pagarmidna".Thanks.This is a seamless pattern of raindrops.

Source Yamachem

Stone Wall & Red #1506
 Red  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Wine [email protected] #34
 Light  CC BY-SA 3.0

Wine cork texture based off a scanned corkboard.

Source Atle Mo

P5 #1113
 Light  CC BY-SA 3.0

Number five from the same submitter, makes my job easy.

Source Dima Shiper

Pinetree in tortoiseshell(亀甲松) #2538
 Dark  CC 0

The image depicts a seamless pattern of Japanese Edo pattern called "kikkou-matsu" or "亀甲松" meaning " tortoiseshell-pinetree".The real pinetree is like this: https://jp.pinterest.com/pin/500744052301065077/

Source Yamachem

Dark #1258
 Paper  CC 0

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

Source Sojan Janso

Outlets #671
 Dark  CC BY-SA 3.0

Just 4x8px, but still so stylish!

Source Michal Chovanec

Checkered Pattern #322
 Grid  CC BY-SA 3.0

Simple gray checkered lines, in light tones.

Source Radosław Rzepecki

Dark Well #1259
 Wall  CC 0

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

Source Sojan Janso

Subtle Surface #925
 Light  CC BY-SA 3.0

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

Source Designova

Prismatic Geometric Tessellation Pattern 4 No Background #557
 Noise  CC 0

Prismatic Geometric Tessellation Pattern 4 No Background

Source GDJ

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

Background pattern 225 #2327
 Colorful  CC 0

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

Source Firkin