From a drawing in 'Handbook of the excursions proposed to be made by the Lincoln Diocesan Architectural Society, on the 27th and 28th of May, 1857', Edward Trollope, 1857.
Source Firkin
A seamless design of flowers remixed from a jpg on Pixabay by Prawny.
Source Firkin
The classic notebook paper with horizontal stripes.
Source Are Sundnes
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
The act or state of corrugating or of being corrugated, a wrinkle; fold; furrow; ridge.
Source Anna Litvinuk
Not so subtle. These tileable wood patterns are very useful.
Source Elemis
All good things come in threes, so I give you the third in my little concrete wall series.
Source Atle Mo
You don’t see many mid-tone patterns here, but this one is nice.
Source Joel Klein
Abstract Ellipses Background Grayscale
Source GDJ
Seamless Light Background Texture.
Source V. Hartikainen
Number 2 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
The image depicts a seamless pattern of a snow crystal.I referred to a book called ”sekka-zusetsu” or "雪華図説" which means an illustrated explanation about snow crystals.This book was published in 1832 (天保3年) or Edo period.For more about "雪華図説",see here:dl.ndl.go.jp/info:ndljp/pid/2536975
Source Yamachem
A bit like smudged paint or some sort of steel, here is scribble light.
Source Tegan Male
Nicely executed tiling for an interesting pattern.
Source Ignasi Àvila Padró
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Derived from an image that was uploaded to Pixabay by mdmelo.
Source Firkin
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Utilising a bird from s-light and some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use 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
The image depicts a pattern of regular hexagon.As I made to use it for myself,I want to others to use it.Speaking about the ratio of the image, height : width = 2 : √3(1.732...)Ridiculous to say,I realized later that this image is not honey comb pattern.I have to slide the second row.
Source Yamachem
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
This one takes you back to math class. Classic mathematic board underlay.
Source Josh Green