This is a seamless pattern of regular hexagon which has a honeycomb structure.
Source Yamachem
Very dark pattern with some noise and 45-degree lines.
Source Stefan Aleksić
Abstract Stars Geometric Pattern Prismatic No Background
Source GDJ
Subtle scratches on a light gray background.
Source Andrey Ovcharov
Bumps, highlight and shadows – all good things.
Source Badhon Ebrahim
From a drawing of the coat of arms of the Ottoman Empire on Wikimedia.
Source Firkin
From a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
Medium gray fabric pattern with 45-degree lines going across.
Source Atle Mo
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Colour version of the original pattern inspired by the front cover of 'Old and New Paris', Henry Edwards, 1894.
Source Firkin
From a drawing in 'Maidenhood; or, the Verge of the Stream', Laura Jewry, 1876.
Source Firkin
Pattern that came out of playing with the 'slinky' plug-in for Paint.net
Source Firkin
Zero CC tileable seed texture, edited by me to be seamless from a Pixabay image. CC0
Source Sojan Janso
Here's a tile-able wood background image for use in web design.
Source V. Hartikainen
Prismatic 3D Isometric Tessellation Pattern 6
Source GDJ
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
I know there is one here already, but this is sexy!
Source Gjermund Gustavsen
It’s an egg, in the form of a pattern. This really is 2012.
Source Paul Phönixweiß
Prismatic Geometric Pattern Background
Source GDJ
A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i
Source Firkin
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A seamless pattern from a tile made from a jpg on Pixabay. To get the tile select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Prismatic Groovy Concentric Background 5
Source GDJ
Horizontal and vertical lines on a light gray background.
Source Adam Anlauf
Based on an image that was uploaded to Pixabay by devanath
Source Firkin