One more from Badhon, sharp horizontal lines making an embossed paper feeling.
Source Badhon Ebrahim
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
As simple and subtle as it gets. But sometimes that’s just what you want.
Source Designova
Remixed from a drawing in 'Works. Popular edition', John Ruskin, 1886.
Source Firkin
More leather, and this time it’s bigger! You know, in case you need that.
Source Elemis
Derived from a PNG that was uploaded to Pixabay by nutkitten
Source Firkin
Found on the ground in french cafe in kunming, Yunnan, china
Source Rejon
Floral patterns might not be the hottest thing right now, but you never know when you need it!
Source Lauren
White handmade paper pattern with small bumps.
Source Marquis
Prismatic Isometric Cube Wireframe Pattern No Background
Source GDJ
Inspired by a pattern seen on a public domain image of a very old tile. To get the unit cell, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
This is indeed a bit strange, but here’s to the crazy ones!
Source Christopher Buecheler
Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
A pattern drawn in Paint.net and vectorized in Inkscape.
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
The image depicts a seamless pattern which was made using stripe-like things including borders.I used OCAL cliparts called "Blue Greek Key With Lines Border" uploaded by "GR8DAN" and "daisy border" uploaded by "johnny_automatic".Thanks.
Source Yamachem
So tiny, just 7 by 7 pixels – but still so sexy. Ah yes.
Source Dmitriy Prodchenko
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
Colour version that is close to the original drawing uploaded to Pixabay by pencilparker.
Source Firkin
From a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
This is indeed a bit strange, but here’s to the crazy ones!
Source Christopher Buecheler
One of the few full-color patterns here, but this one was just too good to pass up.
Source Alexey Usoltsev
The green fibers pattern will work very well in grayscale as well.
Source Matteo Di Capua
A seamless gray background texture suitable for use on websites. To me, it has the look of stone. Feel free to modify it to meet your needs (by making it a bit lighter or darker, for example).
Source V. Hartikainen