I skipped number 3, because it wasn’t all that great. Sorry.
Source Dima Shiper
Formed from a tile based on a drawing from 'Viaggi d'un artista nell'America Meridionale', Guido Boggiani, 1895.
Source Firkin
A frame using leaves from an image that was uploaded to Pixabay by mayapujiati
Source Firkin
Detailed but still subtle and quite original. Lovely gray shades.
Source Kim Ruddock
The basic shapes never get old. Simple triangle pattern.
Source Atle Mo
Tiny, tiny 3D cubes. Reminds me of the good old pattern from k10k.
Source Etienne Rallion
It’s big, it’s gradient—and it’s square.
Source Brankic1979
Alternative colour scheme for the original floral pattern.
Source Firkin
Never out of fashion and so much hotter than the 45º everyone knows, here is a sweet 60º line pattern.
Source Atle Mo
A seamless texture of a rough concrete surface.
Source V. Hartikainen
Recreated from a pattern found in 'Az Osztrák-Magyar Monarchia irásban és képben', 1882. To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A pattern formed from a squared tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
Remixed from a drawing in 'Prehistoric Man: researches into the origin of civilisation in the old and the new world', Daniel Wilson, 1876.
Source Firkin
Classic vertical lines, in all its subtlety.
Source Cody L
People seem to enjoy dark patterns, so here is one with some circles.
Source Atle Mo
A seamlessly tileable pink background texture.
Source V. Hartikainen
Background Wall, Art Abstract, white Well & CC0 texture.
Source Ractapopulous
A background tile for web with abstract repeating texture of dark "stone wall".
Source V. Hartikainen
It’s an egg, in the form of a pattern. This really is 2012.
Source Paul Phönixweiß
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
A playful triangle pattern with different shades of gray.
Source Dimitrie Hoekstra
Remixed from a JPG that was uploaded to Pixabay by theasad121
Source Firkin
It’s a hole, in a pattern. On your website. Dig it!
Source Josh Green