Leafy pattern 11 (colour) #1763
Green CC 0From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
More Textures
Floral design 100 (version 2, colour) #1772
Green CC 0From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
snow crystal seamless pattern #2467
Blue CC 0The image depicts a seamless pattern of a snow crystal.I referred to a book called ”sekka-zusetsu” or "雪華図説" which means an illustrated explanation about snow crystals.This book was published in 1832 (天保３年) or Edo period.For more about "雪華図説",see here:dl.ndl.go.jp/info:ndljp/pid/2536975
Source Yamachem
Seamless Cardboard Texture #1212
Cardboard CC BY-SA 3.0A free background image with a seamless texture of cardboard. This texture of cardboard looks quite realistic, especially when is actually tiled.
Source V. Hartikainen
Background pattern 249 #2179
Blue CC 0To get the tile this is made up from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Black Linen 2@2X #104
Dark CC BY-SA 3.0A new take on the black linen pattern. Softer this time.
Source Atle Mo
Tex2res3@2X #724
Fabric CC BY-SA 3.0Number 4 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Floral design 71 #2429
Dark CC 0From a drawing in 'From Snowdon to the Sea. Striking stories of North and South Wales', Marie Trevelyan, 1895.
Source Firkin
Floral design 99 (colour) #1777
Green CC 0From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Background pattern 314 #1839
Yellow CC 0The square tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Candyhole #356
Light CC BY-SA 3.0It’s a hole, in a pattern. On your website. Dig it!
Source Josh Green
Decorative divider 290 #1817
Dark CC 0From a drawing in 'Cassell's Library of English Literature', Henry Morley, 1883.
Source Firkin
Fancy Deboss@2X #178
Fabric CC BY-SA 3.0Luxury pattern, looking like it came right out of Paris.
Source Daniel Beaton
Soft Kill #318
Dark CC BY-SA 3.0Pattern #100! A black classic knit-looking pattern.
Source Factorio.us Collective
Background pattern 232 #2297
Dark CC 0Heavily remixed from a drawing in 'Barbara Leybourne; a story of eighty years ago', Sarah Hamer, 1889.
Source Firkin
Diamond Eyes #685
Diamond CC BY-SA 3.0Everyone loves a diamond, right? Make your site sparkle.
Source AJ Troxell
Blue on White Background Pattern #993
Stripes CC BY-SA 3.0A background pattern with blue on white vertical stripes.
Source V. Hartikainen
Noise Pattern With Subtle Cross Lines #179
Grid CC BY-SA 3.0More bright luxury. This is a bit larger than fancy deboss, and with a bit more noise.
Source Viszt Péter
Billie Holiday #1002
Light CC BY-SA 3.0No relation to the band, but damn it’s subtle!
Source Thomas Myrman
Background pattern 215 #2371
Brown CC 0A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.
Source Firkin
Dark Wood #320
Wood CC BY-SA 3.0A beautiful dark wood pattern, superbly tiled.
Source Omar Alvarado
Abstract Tiled Background Extended 10 #521
Noise CC 0Abstract Tiled Background Extended 10
Source GDJ
Seamless Prismatic Pythagorean Line Art Pattern No Background@2X #570
Light CC 0Seamless Prismatic Pythagorean Line Art Pattern No Background. A seamless pattern that includes the original tile (go to Objects / Pattern / Pattern To Objects in Inkscape's menu to extract it).
Source GDJ