This one could be the shirt of a golf player. Angled lines in different thicknesses.
Source Olivier Pineda
Simple gray checkered lines, in light tones.
Source Radosław Rzepecki
An alternative colour scheme to the original seamless pattern.
Source Firkin
You may use it as is, or modify it as you like.
Source V. Hartikainen
Remixed from a drawing in 'Hungary. A guide book. By several authors', 1890.
Source Firkin
It has waves, so make sure you don’t get sea sickness.
Source CoolPatterns
This tiled background comes in red and consists of tiles that look like gemstones. It is more for blogs or social profiles, I think.
Source V. Hartikainen
White fabric looking texture with some nice random wave features.
Source Hendrik Lammers
The name is totally random, but hey, it sounds good.
Source Atle Mo
The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Coming in at 666x666px, this is an evil big pattern, but nice and soft at the same time.
Source Atle Mo
I’m guessing this is related to the Sony Vaio? It’s a nice pattern no matter where it’s from.
Source Zigzain
A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.
Source Firkin
Submitted in a cream color, but you know how I like it.
Source Devin Holmes
Nasty or not, it’s a nice pattern that tiles. Like they all do.
Source Badhon Ebrahim
Wasn't satisfied with the original's colouring. Too much component transfer and colormatrixes yet the results are lacking a bit. So this time it is a simple black to transparent fade, making it possible remixing easily once there will be other blending modes supported as well. Probably in inkscape 0.92.
Source Lazur URH
Geometric lines are always hot, and this pattern is no exception.
Source Listvetra
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Formed by heavily distorting part of a an image of a fish uploaded to Pixabay by GLady
Source Firkin
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Colour version of the original pattern.
Source Firkin
A dark background pattern/texture of a dimpled metal plate.
Source V. Hartikainen