White [email protected] #132
 Light  CC BY-SA 3.0

Not the most creative name, but it’s a good all-purpose light background.

Source Dmitry

 More Textures
White Paperboard #374
 Fabric  CC BY-SA 3.0

Could be paper, could be a Polaroid frame – up to you!

Source Chaos

Connected #348
 Light  CC BY-SA 3.0

White circles connecting on a light gray background.

Source Mark Collins

Prismatic Hypnotic Pattern No [email protected] #572
 Noise  CC 0

Prismatic Hypnotic Pattern No Background

Source GDJ

Summer leaves pattern #2469
 Green  CC 0

A seamless pattern formed from leaves.

Source Firkin

"Seamless Bark", Website Background. #879
 Wood  CC BY-SA 3.0

This background pattern contains a seamless texture of bark. It's not very realistic, but I think it looks quite nice.

Source V. Hartikainen

Prismatic Dots Background #501
 Noise  CC 0

Prismatic Dots Background

Source GDJ

Boiler Plate Rust #1644
 Metal  CC 0

Metal-Processed. CC0 License.

Source Unknow

Seamless Colorful Floral Pattern Background #256
 Fabric  CC 0

PDP

Source GDJ

Prismatic Dots Background [email protected] #512
 Dark  CC 0

Prismatic Dots Background 6

Source GDJ

Colourful background 39 #1782
 Noise  CC 0

A colourful chequerboard-type pattern.

Source Firkin

Vaio #675
 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

Satin [email protected] #1045
 Light  CC BY-SA 3.0

Super simple but very nice indeed. Gray with vertical stripes.

Source Merrin Macleod

Old [email protected] #44
 Stripes  CC BY-SA 3.0

This one takes you back to math class. Classic mathematic board underlay.

Source Josh Green

Dungeons & Flagons 7 #1423
 Diamond  CC 0

Gamedev - Floors Textures. CC0 License.

Source Davit Masia

Floors & Yellow #1606
 Wall  CC 0

Floors-Tiles. CC0 License.

Source Unknow

Floral tile 3 #1791
 Yellow  CC 0

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

Source Firkin

Cover Green #1283
 Dark  CC 0

Zero CC tileable hard cover green book, scanned and made by me. CC0

Source Sojan Janso

Retina [email protected] #916
 Light  CC BY-SA 3.0

First pattern tailor-made for Retina, with many more to come. All the old ones are upscaled, in case you want to re-download.

Source Atle Mo

Txture #757
 Dark  CC BY-SA 3.0

Dark, lines, noise, tactile. You get the drift.

Source Anatoli Nicolae

Prismatic Floral Pattern 3 Variation 3 No [email protected] #808
 Noise  CC 0

Prismatic Floral Pattern 3 Variation 3 No Background

Source GDJ

Decorative divider 204 #2388
 Dark  CC 0

Adapted from a jpg on Pixabay.

Source Firkin

Tactile Paving A1 #2121
 Wall  CC 0

CC0 textures, backgrounds.

Source SliverKnight

Colorful Floral [email protected] #480
 Noise  CC 0

Colorful Floral Background

Source GDJ

Colorful Floral Background 3 No Black #485
 Light  CC 0

Colorful Floral Background 3 No Black

Source GDJ

Background pattern 238 (colour 3) #2227
 Blue  CC 0

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

Source Firkin

Iron Grip #587
 Dark  CC BY-SA 3.0

Sounds like something from World of Warcraft. Has to be good.

Source Tony Kinard

[email protected] #1114
 Light  CC BY-SA 3.0

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

Source Dima Shiper