From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
A seamless pattern formed from background pattern 102
Source Firkin
You may use it as is, or modify it as you like.
Source V. Hartikainen
The image depicts a shell seamless pattern.I used an OCAL clipart called "Shell" uploaded by "jgm104".Thanks.
Source Yamachem
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
As far as fabric patterns goes, this is quite crisp.
Source Heliodor Jalba
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Luxury pattern, looking like it came right out of Paris.
Source Daniel Beaton
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Here's a bluish gray striped background pattern for use on web sites.
Source V. Hartikainen
You know you can’t get enough of these linen-fabric-y patterns.
Source James Basoo
Bit of a strange name on this one, but still nice. Tiny gray square things.
Source Carlos Valdez
Because I love dark patterns, here is Brushed Alum in a dark coating.
Source Tim Ward
The image depicts a seamless pattern of a tortoise in tortoiseshell (hexagon).
Source Yamachem
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Here's a camo print with more tan and less green, such as might be used in a desert scenario. This is tileable, so it can be used as a wallpaper or background.
Source Eady
Heavily remixed from a drawing in 'Barbara Leybourne; a story of eighty years ago', Sarah Hamer, 1889.
Source Firkin
A series of 5 patterns. That’s what the P stands for, if you didn’t guess it.
Source Dima Shiper
This is indeed a bit strange, but here’s to the crazy ones!
Source Christopher Buecheler