From a drawing in 'The Quiver of Love', Walter Crane, 1876
Source Firkin
The image depicts a seamless pattern of Japanese Edo pattern called "kikkou-matsu" or "亀甲松" meaning " tortoiseshell-pinetree".The real pinetree is like this: https://jp.pinterest.com/pin/500744052301065077/
Source Yamachem
The perfect pattern for all your blogs about type, or type-related matters.
Source Atle Mo
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
The image depicts a seamless pattern of a tortoise in tortoiseshell (hexagon).
Source Yamachem
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
Textured Red Brown Plastic, Free Background Pattern. Although there's already enough plastic in our lives, let's bring it to the web too.)
Source V. Hartikainen
Wild Oliva or Oliva Wilde? Darker than the others, sort of a medium dark pattern.
Source Badhon Ebrahim
Super subtle indeed, a medium gray pattern with tiny dots in a grid.
Source Designova
This is the third pattern called Dark Denim, but hey, we all love them!
Source Brandon Jacoby
Not the most creative name, but it’s a good all-purpose light background.
Source Dmitry
Sweet and subtle white plaster with hints of noise and grunge.
Source Phil Maurer
More Japanese-inspired patterns, Gold Scales this time.
Source Josh Green
It’s okay to be square! A nice light gray pattern with random squares.
Source Waseem Dahman
Looks like a technical drawing board: small squares forming a nice grid.
Source We Are Pixel8
Fabric-ish patterns are close to my heart. French Stucco to the rescue.
Source Christopher Buecheler
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Nicely executed tiling for an interesting pattern.
Source Ignasi Àvila Padró
You can never get enough of these tiny pixel patterns with sharp lines.
Source Designova
A seamless canvas texture for using as background on websites. Colored in pale tones of brown.
Source V. Hartikainen
From a drawing in 'Resa i Afrika, genom Angola, Ovampo och Damaraland', P. Moller, 1899.
Source Firkin
A seamless pattern with green and yellow diagonal lines on top of a white dotted background.
Source V. Hartikainen
Paper pattern with small dust particles and 45-degree strokes.
Source Atle Mo