Always Grey #53
 Dark  CC BY-SA 3.0

Crossing lines with a subtle emboss effect on a dark background.

Source Stefan Aleksić

 More Textures
Background pattern 19 (black) #203
 Dark  CC 0

A seamless pattern the starting point for which was a 'rainbow twist' texture in Paint.net.

Source Firkin

Prismatic Groovy Concentric Background #449
 Noise  CC 0

Prismatic Groovy Concentric Background

Source GDJ

Background pattern 308 (colour 5) #1869
 Blue  CC 0

Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.

Source Firkin

Background pattern 224 (colour 3) #2340
 Colorful  CC 0

To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.

Source Firkin

Retro Circles Background [email protected] #436
 Dark  CC 0

Retro Circles Background 8

Source GDJ

Background pattern brown #1951
 Brown  CC 0

To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.

Source Firkin

Background pattern 214 (colour 5) #2374
 Green  CC 0

A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Alternative colour scheme.

Source Firkin

seigaiha subtle color #2278
 Pink  CC 0

This is a remix of "blue wave-seigaiha".I hope this subtle color version of Seigaiha would be suitable for background .

Source Yamachem

Seamless Blue On Yellow Background #1160
 Grid  CC BY-SA 3.0

This seamless pattern consists of a blue grid on a yellow background.

Source V. Hartikainen

Background pattern 320 #1830
 Pink  CC 0

Formed by distorting a JPG from PublicDomainPictures

Source Firkin

Background pattern 263 #2073
 Pink  CC 0

Actually remixed from a pattern on Pixabay. But then noticed a very similar one on Openclipart.org uploaded by btj51q2.

Source Firkin

Textured Paper #1130
 Paper  CC BY-SA 3.0

You know I love paper patterns. Here is one from Stephen. Say thank you!

Source Stephen Gilbert

Decorative divider 281 #1874
 Wall  CC 0

Remixed from a drawing that was uploaded to Pixabay by ractapopulous

Source Firkin

Floral pattern 10 #1771
 Yellow  CC 0

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

Source Firkin

Patterned Pale Orange Background #1314
 Orange  CC BY-SA 3.0

You may use it as is, or modify it as you like.

Source V. Hartikainen

Fabric of Squares #1095
 Light  CC BY-SA 3.0

As far as fabric patterns goes, this is quite crisp.

Source Heliodor Jalba

Colourful background #2010
 Colorful  CC 0

Made by distorting a simple pattern using the 'sin waves' plugin for Paint.net and vectorising in Vector Magic

Source Firkin

[email protected] #186
 Light  CC BY-SA 3.0

One more sharp little tile for you. Subtle circles this time.

Source Blunia

Background Patterns Lazuli #253
 Fabric  CC 0

If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117

Source Viscious-Speed

Textured [email protected] #868
 Stripes  CC BY-SA 3.0

A lovely light gray pattern with stripes and a dash of noise.

Source V. Hartikainen

[email protected] #734
 Wall  CC BY-SA 3.0

Medium gray pattern with small strokes to give a weave effect.

Source Catherine

Background pattern 222 (colour 2) #2344
 Brown  CC 0

A seamless pattern formed from a tile made from page ornament 22. To get the tile, select the rectangle in Inkscape and use shift+alt+i.

Source Firkin

Prismatic Polka Dots Mark II 2 No [email protected] #533
 Noise  CC 0

Prismatic Polka Dots Mark II 2 No Background

Source GDJ

“Transparent” Background Pattern #493
 Light  CC 0

An emulated “transparent” background pattern, like that of all kinds of computer graphics software.

Source AdamStanislav

Mix & Black Iron #1645
 Metal  CC 0

Metal-Processed. CC0 License.

Source Unknow

[email protected] #576
 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

Tex2res3 #723
 Fabric  CC BY-SA 3.0

Number 4 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.

Source Janos Koos

Stone Wall & Dark #1492
 Stone  CC 0

Incoming catena. Stone & well. CC0 texture.

Source Unknow