A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Zero CC tillable hard cover red book with X shape marks. Scanned and made by me.
Source Sojan Janso
A floral background formed from numerous clones of flower 117.
Source Firkin
This is lovely, just the right amount of subtle noise, lines and textures.
Source Richard Tabor
I guess this one is inspired by an office. A dark office.
Source Andrés Rigo.
This background pattern contains a texture of yellow wood planks. I think it looks quite original.
Source V. Hartikainen
The image depicts a seamless pattern which was made using stripe-like things including borders.I used OCAL cliparts called "Blue Greek Key With Lines Border" uploaded by "GR8DAN" and "daisy border" uploaded by "johnny_automatic".Thanks.
Source Yamachem
A dark metal plate with an embossed grid pattern and a bit of rust. Here's a dark metal plate texture for use as a tiled background on web pages.
Source V. Hartikainen
Remixed from a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
One more sharp little tile for you. Subtle circles this time.
Source Blunia
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
A chequerboard pattern with a fruit theme. The fruits are from a posting by inkscapeforum.it.
Source Firkin
A background pattern with blue on white vertical stripes.
Source V. Hartikainen
Submitted in a cream color, but you know how I like it.
Source Devin Holmes
There are quite a few grid patterns, but this one is a super tiny grid with some dust for good measure.
Source Dominik Kiss
Pass parameters to the URL or edit the source code variables to configure the graph paper for the division desired.
Source JayNick
Background formed from the original with an emboss effect.
Source Firkin
Used correctly, this could be nice. Used in a bad way, all hell will break loose.
Source Atle Mo
I’m not going to lie – if you submit something with the words Norwegian and Rose in it, it’s likely I’ll publish it.
Source Fredrik Scheide
Brushed aluminum, in a bright gray version. Lovely 2X as well.
Source Andre Schouten
A seamless pattern that includes the original tile (go to Objects / Pattern / Pattern To Objects in Inkscape's menu to extract it).
Source GDJ
Derived from an image that was uploaded to Pixabay by starchim01
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso