Background pattern 227 (colour 5) #2310
 Colorful  CC 0

A seamless background drawn in Paint.net and vectorised with Vector Magic. The starting point was a photograph of drinking straws from Pixabay.

Source Firkin

 More Textures
Seamless Textured Paper Background #1075
 Paper  CC BY-SA 3.0

A seamless textured paper for backgrounds. Colored in pale orange hues.

Source V. Hartikainen

Tree and bird pattern #1983
 Dark  CC 0

From a drawing in 'Line and form', Walter Crane, 1914.

Source Firkin

Mix & Red Pattern #1630
 Metal  CC 0

Metal-Plain or Painted. CC0 License.

Source Unknow

Escheresque Dark #1064
 Dark  CC BY-SA 3.0

A comeback for you: the popular Escheresque, now in black.

Source Patten

Low Contrast [email protected] #864
 Dark  CC BY-SA 3.0

A smooth mid-tone gray, or low contrast if you will, linen pattern.

Source Jordan Pittman

[email protected] #954
 Dark  CC BY-SA 3.0

Hexagonal dark 3D pattern. What more can you ask for?

Source Norbert Levajsics

Food and drink design #1897
 Dark  CC 0

Colour version that is close to the original drawing uploaded to Pixabay by pencilparker.

Source Firkin

Stone Granite #1292
 Stone  CC 0

ZeroCC tileabel stone granite texture, edited from pixabay. CC0

Source Sojan Janso

Tessellation 15 #2223
 Dark  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

Page ornament 23 #2357
 Dark  CC 0

Formed in Paint.net and vectorised in Vector Magic.

Source Firkin

Iron Wrought & Black #1658
 Metal  CC 0

Metal-Rusty. CC0 License.

Source Unknow

Crisp Paper [email protected] #842
 Light  CC BY-SA 3.0

Sort of reminds me of those old house wallpapers.

Source Tish

Padded #61
 Dark  CC BY-SA 3.0

A beautiful dark padded pattern, like an old classic sofa.

Source Chris Baldie

Background pattern 333 #1741
 Noise  CC 0

The tile this is formed from can be retrieved in Inkscape by selecting the rectangle and using shift+alt+i

Source Firkin

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 6 (colour 6) #2455
 Fabric  CC 0

Alternative colour scheme for the original floral pattern.

Source Firkin

Prismatic Curved Diamond Pattern 3 No Background #162
 Diamond  CC 0

Prismatic Curved Diamond Pattern 3 No Background

Source GDJ

Prismatic Groovy Concentric [email protected] #450
 Noise  CC 0

Prismatic Groovy Concentric Background

Source GDJ

Fabric (Plaid)@2X #592
 Fabric  CC BY-SA 3.0

You know you can’t get enough of these linen-fabric-y patterns.

Source James Basoo

Climpek #775
 Grid  CC BY-SA 3.0

Small gradient crosses inside 45-degree boxes, or bigger crosses if you will.

Source Wassim

Notebook #1178
 Gray  CC BY-SA 3.0

This one is super crisp at 2X. Lined paper with some dust and scratches.

Source HQvectors

Stone Wall & Green #1535
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Vintage Clay Tile 1 #1458
 Unknow  CC 0

Gamedev - Roofs Textures. CC0 License.

Source Davit Masia

Cardboard #278
 Paper  CC BY-SA 3.0

A good starting point for a cardboard pattern. This would work well in a variety of colors.

Source Atle Mo

The Black [email protected] #770
 Dark  CC BY-SA 3.0

Super dark, crisp and detailed. And a Kill Bill reference.

Source Badhon Ebrahim

mesh 02 #2275
 Light  CC 0

The image depicts a mesh.I made it as template.

Source Yamachem

Cartographer #749
 Dark  CC BY-SA 3.0

A topographic map like this has actually been requested a few times, so here you go!

Source Sam Feyaerts

[email protected] #718
 Dark  CC BY-SA 3.0

Number 1 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.

Source Janos Koos

Decorative divider 214 #2315
 Dark  CC 0

From a drawing in 'Kingsdene', Maria Fetherstonehaugh, 1878.

Source Firkin

Grey Washed [email protected] #1129
 Wall  CC BY-SA 3.0

This is a semi-dark pattern, sort of linen-y.

Source Sagive SEO