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

 More Textures
Gradient [email protected] #694
 Grid  CC BY-SA 3.0

It’s big, it’s gradient—and it’s square.

Source Brankic1979

Diamond pattern (colour 4) #2282
 Blue  CC 0

From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.

Source Firkin

Planks & Roughcedar #1353
 Wood  CC 0

CC0 for Free, hope you like it.

Source Yethiel

Ribbon pattern 2 (version 2, colour 3) #2037
 Colorful  CC 0

The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.

Source Firkin

Tactile Noise #5
 Dark  CC BY-SA 3.0

A heavy dark gray base, some subtle noise and a 45-degree grid makes this look like a pattern with a tactile feel to it.

Source Atle Mo

"Dark Wood", Free Web Background #872
 Wood  CC BY-SA 3.0

Feel free to download this "Dark Wood" background texture for your web site. The background tiles seamlessly!

Source V. Hartikainen

Mix & Black Iron #1645
 Metal  CC 0

Metal-Processed. CC0 License.

Source Unknow

One in a Million #1346
 Gray  CC BY-SA 3.0

Nicely executed tiling for an interesting pattern.

Source Ignasi Àvila Padró

Wall #1360
 Wall  CC 0

Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!

Source Linolafett

Graphy #350
 Grid  CC BY-SA 3.0

Looks like a technical drawing board: small squares forming a nice grid.

Source We Are Pixel8

Orange-red Pattern #995
 Stripes  CC BY-SA 3.0

Orange-red pattern for tiled backgrounds.

Source V. Hartikainen

Decorative divider #1986
 Dark  CC 0

Remixed from a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.

Source Firkin

Floral divider 4 #1750
 Dark  CC 0

From a drawing in 'Resa i Afrika, genom Angola, Ovampo och Damaraland', P. Moller, 1899.

Source Firkin

Floral background 11 #2044
 Dark  CC 0

Remixed from a drawing in 'The March of Loyalty', Letitia MacClintock, 1884.

Source Firkin

Wall #1243
 Wall  CC 0

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

Source Sojan Janso

Floors #1587
 Wall  CC 0

Floors-Tiles. CC0 License.

Source Unknow

Tex2res5 #725
 Fabric  CC BY-SA 3.0

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

Source Janos Koos

[email protected] #774
 Stripes  CC BY-SA 3.0

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

Source Markus Reiter

Abstract Ellipses Background Grayscale #378
 Dark  CC 0

Abstract Ellipses Background Grayscale

Source GDJ

Background pattern 314 (colour 5) #1835
 Pink  CC 0

The square tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i

Source Firkin

Floral background 17 #1851
 Green  CC 0

Vector version of a JPG that was uploaded to Pixabay by theasad121

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

Background pattern 312 (colour 2) #1859
 Red  CC 0

Alternative colour scheme

Source Firkin

Planks & Wornboards #1350
 Wood  CC 0

CC0 for Free, hope you like it.

Source Yethiel

Configurable Graph [email protected] #816
 Stripes  CC 0

Pass parameters to the URL or edit the source code variables to configure the graph paper for the division desired.

Source JayNick

Decorative divider 280 #1875
 Blue  CC 0

From a drawing in 'Artists and Arabs', Henry Blackburn, 1868

Source Firkin

Tree Bark #1182
 Light  CC BY-SA 3.0

This one is something special. I’d call it a flat pattern, too. Very well done, sir!

Source GetDiscount

Decorative divider 192 #2503
 Dark  CC 0

From a drawing in 'Worsborough; its historical associations and rural attractions', Joseph Wilkinson, 1879.

Source Firkin

Arches #715
 Light  CC BY-SA 3.0

One more in the line of patterns inspired by Japanese/Asian styles. Smooth.

Source Kim Ruddock

Bird pattern (colour 2) #2292
 Green  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