To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Luxury pattern, looking like it came right out of Paris.
Source Daniel Beaton
Inspired by a drawing in 'Poems', James Smith, 1881.
Source Firkin
A smooth mid-tone gray, or low contrast if you will, linen pattern.
Source Jordan Pittman
ZeroCC tileable moss texture, photographed and made by me. CC0
Source Sojan Janso
Not strictly seamless in that opposite edges are not identical. But they do marry up to make an interesting pattern
Source Firkin
A lot of people like the icon patterns, so here’s one for your restaurant blog.
Source Andrijana Jarnjak
The act or state of corrugating or of being corrugated, a wrinkle; fold; furrow; ridge.
Source Anna Litvinuk
The base gradient edited so now more details are rendered.
Source Lazur URH
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
A heavy hitter at 400x400px, but lovely still.
Source Breezi
From a drawing in 'Less Black than we're painted', James Payn, 1884.
Source Firkin
This one is something special. I’d call it a flat pattern, too. Very well done, sir!
Source GetDiscount
Some rectangles, a bit of dust and grunge, plus a hint of concrete.
Source Atle Mo
Prismatic Triangular Background Design Mark II 5
Source GDJ
A repeating background with wood/straw like texture.
Source V. Hartikainen
Prismatic Geometric Pattern Background No Black
Source GDJ
A textured blue background pattern with vertical stripes.
Source V. Hartikainen
A seamless background texture of old cardboard.
Source V. Hartikainen
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin