This is a seamless pattern of regular hexagon which has a honeycomb structure.
Source Yamachem
You don’t see many mid-tone patterns here, but this one is nice.
Source Joel Klein
This is a semi-dark pattern, sort of linen-y.
Source Sagive SEO
People seem to enjoy dark patterns, so here is one with some circles.
Source Atle Mo
Remixed from a drawing in 'A Child of the Age', Francis Adams, 1894.
Source Firkin
These dots are already worn for you, so you don’t have to.
Source Matt McDaniel
Prismatic Abstract Geometric Background 5
Source GDJ
A free background pattern with abstract green tiles.
Source V. Hartikainen
Remixed from a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Inspired by a 1930s wallpaper pattern I saw on TV.
Source Firkin
Prismatic Groovy Concentric Background
Source GDJ
Light gray paper pattern with small traces of fiber and some dust.
Source Atle Mo
Number 2 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i
Source Firkin
Geometric lines are always hot, and this pattern is no exception.
Source Listvetra
Lovely pattern with some good-looking non-random noise lines.
Source Zucx
Lovely light gray floral motif with some subtle shades.
Source GraphicsWall
Prismatic Hypnotic Pattern No Background
Source GDJ
Dead simple but beautiful horizontal line pattern.
Source Fabian Schultz
Light honeycomb pattern made up of the classic hexagon shape.
Source Federica Pelzel
Zero CC tileable bark texture, photographed and made by me. CC0
Source Sojan Janso
Abstract Geometric Monochrome Pattern Prismatic No Background
Source GDJ
Remixed from a drawing in 'Maidenhood; or, the Verge of the Stream', Laura Jewry, 1876.
Source Firkin
You know, tiny and sharp. I’m sure you’ll find a use for it.
Source Atle Mo
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin