This background pattern contains a seamless texture of bark. It's not very realistic, but I think it looks quite nice.
Source V. Hartikainen
This is sort of fresh, but still feels a bit old school.
Source Martuchox
A seamless pattern formed from cross 4. To get the original tile select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Looks like a technical drawing board: small squares forming a nice grid.
Source We Are Pixel8
Prismatic Abstract Background Design No Black
Source GDJ
Found on the ground in french cafe in kunming, Yunnan, china
Source Rejon
From a drawing in 'Navigations de Alouys de Cademoste.-La Navigation du Capitaine Pierre Sintre', Alvise da ca da Mosto, 1895.
Source Firkin
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Prismatic Rounded Squares Grid 4 No Background
Source GDJ
This is so subtle I hope you can see it! Tweak at will.
Source Alexandre Naud
In the spirit of WWDC 2011, here is a dark iOS inspired linen pattern.
Source Atle Mo
Small gradient crosses inside 45-degree boxes, or bigger crosses if you will.
Source Wassim
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
A seamless pattern created from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
I love these crisp, tiny, super subtle patterns.
Source Badhon Ebrahim
Used the 6th circle pattern designed by Viscious-Speed to create a print that can be used for card making or scrapbooking. Save as a PDF file for the best printing option.
Source Lovinglf
Pass parameters to the URL or edit the source code variables to configure the graph paper for the division desired.
Source JayNick
Light and tiny, just the way you like it.
Source Rohit Arun Rao
Tiny little flowers growing on your screen. Nice, huh?
Source Themes Tube
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Prismatic Abstract Geometric Background 4 No Black
Source GDJ
Bumps, highlight and shadows – all good things.
Source Badhon Ebrahim
You know I’m a sucker for these. Well-crafted paper pattern.
Source Mihaela Hinayon