Spotty Pattern #1229
 Red  CC BY-SA 3.0

Spotty background pattern.

Source V. Hartikainen

 More Textures
Criss-cross pattern #1895
 Dark  CC 0

A criss-cross pattern similar to one I saw mown into a sports field.

Source Firkin

Geometric pattern #2002
 Dark  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

Wavy background #2022
 Blue  CC 0

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

Source SliverKnight

Background pattern 202 (colour 2) #2489
 Green  CC 0

Based on several public domain drawings on Wikimedia Commons. This was formed from a rectangular tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i

Source Firkin

Stone Wall & Dark #1544
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Vintage pattern #1957
 Grid  CC 0

Formed from a tile based on a drawing from 'Viaggi d'un artista nell'America Meridionale', Guido Boggiani, 1895.

Source Firkin

White Brushed #1183
 Wall  CC BY-SA 3.0

Brushed aluminum, in a bright gray version. Lovely 2X as well.

Source Andre Schouten

Stone Wall & Gray #1508
 Wall  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Decorative divider 199 #2436
 Dark  CC 0

From a drawing in 'Jardyne's Wife', Charles Wills, 1891.

Source Firkin

Floral #1679
 Paper  CC 0

Paper-Wallpaper. CC0 License.

Source Unknow

Green Vertical Stripes, Background Pattern #935
 Stripes  CC BY-SA 3.0

A background pattern with green vertical stripes. A new striped background pattern. This time a green one.

Source V. Hartikainen

Bird pattern #2293
 Pink  CC 0

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

Source Firkin

Wood 7b #1451
 Wood  CC 0

Gamedev - Wood Textures. CC0 License.

Source Davit Masia

Background pattern 306 (colour 4) #1877
 Colorful  CC 0

Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.

Source Firkin

Light Blue Background Pattern #1161
 Grid  CC BY-SA 3.0

This light blue background pattern is quite pleasing to the eye, it consists of a tiny rough grid pattern, which is seamless by design. That's it, if you like the color, you can use this seamless pattern in a web design without making any further modifications to it.

Source V. Hartikainen

Prismatic Groovy Concentric Background 2 #453
 Noise  CC 0

Prismatic Groovy Concentric Background 2

Source GDJ

Stone Wall & Yellow #1554
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow

Prismatic Curved Diamond Pattern No Background #536
 Diamond  CC 0

Prismatic Curved Diamond Pattern No Background

Source GDJ

Grey [email protected] #642
 Paper  CC BY-SA 3.0

A bit strange this one, but nice at the same time.

Source Diogo Silva

Fruit decorative divider #1911
 Colorful  CC 0

Vector version of a png that was uploaded to Pixabay by pencilparker

Source Firkin

Mix Stone #1298
 Stone  CC 0

ZeroCC tileable stone texture, edited from pixabay, CC0

Source Sojan Janso

Prismatic Groovy Concentric Background No Black #451
 Noise  CC 0

Prismatic Groovy Concentric Background No Black

Source GDJ

Brushed Aluminum 3 #1391
 Metal  CC 0

Gamedev - Metal Textures. CC0 License.

Source Davit Masia

Carbon Fiber [email protected] #106
 Carbon  CC BY-SA 3.0

One more updated pattern. Not really carbon fiber, but it’s the most popular pattern, so I’ll give you an extra choice.

Source Atle Mo

Colourful bricks pattern (no background) #265
 Noise  CC 0

Original minus the background

Source Firkin

Background pattern 3 #222
 Noise  CC 0

A pattern derived from repeating unit cells each derived from part of a fractal rendering in paint.net.

Source Firkin

Prismatic Groovy Concentric Background 3 No Black #459
 Noise  CC 0

Prismatic Groovy Concentric Background 3 No Black

Source GDJ

Dungeons & Flagons 3 #1419
 Diamond  CC 0

Gamedev - Floors Textures. CC0 License.

Source Davit Masia

Mix & Black Pattern #1632
 Metal  CC 0

Metal-Plain or Painted. CC0 License.

Source Unknow

Orange Striped Background Pattern #909
 Stripes  CC BY-SA 3.0

An orange vertically striped background pattern. Feel free to download and use this orange background pattern, for example, on the web). It resembles a wallpaper with vertical stripes or something similar to it.

Source V. Hartikainen