From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
A smooth mid-tone gray, or low contrast if you will, linen pattern.
Source Jordan Pittman
Dare I call this a «flat pattern»? Probably not.
Source Dax Kieran
Not so subtle. These tileable wood patterns are very useful.
Source Elemis
This background image is great for using in web design or graphic design projects. And don't forget to visit the homepage. I frequently update this resource with fresh tileable backgrounds.
Source V. Hartikainen
Seamless Prismatic Geometric Pattern With Background
Source GDJ
Dark, lines, noise, tactile. You get the drift.
Source Anatoli Nicolae
Floral patterns might not be the hottest thing right now, but you never know when you need it!
Source Lauren
Looks a bit like concrete with subtle specks spread around the pattern.
Source Mladjan Antic
The green fibers pattern will work very well in grayscale as well.
Source Matteo Di Capua
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin
From a design found in 'History of the Virginia Company of London; with letters to and from the first Colony, never before printed', Edward Neill, 1869.
Source Firkin
White fabric looking texture with some nice random wave features.
Source Hendrik Lammers
Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Super simple but very nice indeed. Gray with vertical stripes.
Source Merrin Macleod
White little knobs, coming in at 10x10px. Sweet!
Source Amos
It’s an egg, in the form of a pattern. This really is 2012.
Source Paul Phönixweiß
Sort of reminds me of those old house wallpapers.
Source Tish
A hint of orange color, and some crossed and embossed lines.
Source Adam Anlauf
This pattern comes in orange, and it looks as if it is "made of glass".
Source V. Hartikainen
This light blue background pattern is quite pleasing to the eye, it consists of a tiny rough grid pattern, which is seamless by design. That's it, if you like the color, you can use this seamless pattern in a web design without making any further modifications to it.
Source V. Hartikainen
A criss-cross pattern similar to one I saw mown into a sports field.
Source Firkin