Cubes as far as your eyes can see. You know, because they tile.
Source Jan Meeus
Prismatic Rounded Squares Grid 4 No Background
Source GDJ
Geometric lines are always hot, and this pattern is no exception.
Source Listvetra
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
This pack of filters can help you adding a blocky overlay to objects. May come handy at drawing blocks of stone.
Source Lazur URH
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
Tweed is back in style – you heard it here first. Also, the @2X version here is great!
Source Simon Leo
Remixed from a drawing in 'Incidents on a Journey through Nubia to Darfoor', F. Ensor, 1891.
Source Firkin
This was formed by distorting an image of a background on Pixabay.
Source Firkin
I took the liberty of using Dmitry’s pattern and made a version without perforation.
Source Atle Mo
There are many carbon patterns, but this one is tiny.
Source Designova
I have no idea what J Boo means by this name, but hey – it’s hot.
Source j Boo
Because I love dark patterns, here is Brushed Alum in a dark coating.
Source Tim Ward
A gray background pattern with a texture of textile. Suits perfectly for web design.
Source V. Hartikainen
A simple example on using clones. You can generate a nice base for a pattern fill quickly with it.
Source Lazur URH
A seamless pattern formed from a modified version of rwwgub's tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
8 by 8 pixels, and just what the title says.
Source pixilated
Colorful Floral Background 3 No Black
Source GDJ
A seamless textured paper for backgrounds. Colored in pale orange hues.
Source V. Hartikainen
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin