Here's a repeatable texture that resembles a light green concrete wall or something similar.
Source V. Hartikainen
Used in small doses, this could be a nice subtle pattern. Used on a large surface, it’s dirty!
Source Paul Reulat
Black And White Floral Pattern Background Inverse
Source GDJ
A pattern derived from repeating unit cells each derived from part of a mosaic in paint.net. The starting point for the mosaic was a picture of some prawns!
Source Firkin
The image a seamless pattern derived from a weed which I can't identify.The original weed image is from here:https://jp.pinterest.com/pin/500744052301423641/
Source Yamachem
A very slick dark rubber grip pattern, sort of like the grip on a camera.
Source Sinisha
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Small gradient crosses inside 45-degree boxes, or bigger crosses if you will.
Source Wassim
Here I have tried to create something that would look like maple wood. Not sure how well it's turned out, but at least it looks like wood.
Source V. Hartikainen
Dark blue concrete wall with some small dust spots.
Source Atle Mo
From a drawing in 'Les Chroniqueurs de l'Histoire de France depuis les origines jusqu'au XVIe siècle', Henriette Witt, 1884.
Source Firkin
A nice one indeed, but I have a feeling we have it already? If you spot a copy, let me know on Twitter.
Source Graphiste
I asked Gjermund if he could make a pattern for us – result!
Source Gjermund Gustavsen
Neat little photography icon pattern.
Source Hossam Elbialy
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Abstract Geometric Monochrome Pattern Prismatic No Background
Source GDJ
Dark, lines, noise, tactile. You get the drift.
Source Anatoli Nicolae
This is the remix of an OCAL clipart called "Art Nouveau ornament" uploaded by "microcosme".Thanks.This is a seamless pattern of an Art Nouveau ornament.
Source Yamachem
A version without colours blended together to give a different look.
Source Firkin
This one is rather fun and playful. The 2X could be used at 1X too!
Source Welsley