Here's a new paper-like background for free use on personal and commercial projects (this applies to all background patterns here).
Source V. Hartikainen
From a drawing in 'Hubert Montreuil, or the Huguenot and the Dragoon', Francisca Ouvry, 1873.
Source Firkin
Inspired by a drawing in 'Poems', James Smith, 1881.
Source Firkin
Element of beach pattern with background.
Source Rones
Light square grid pattern, great for a “DIY projects” sort of website, maybe?
Source Rafael Almeida
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Horizontal and vertical lines on a light gray background.
Source Adam Anlauf
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
It almost looks a bit blurry, but then again, so are fishes.
Source Petr Šulc
I took the liberty of using Dmitry’s pattern and made a version without perforation.
Source Atle Mo
Retro Circles Background 4 No Black
Source GDJ
This background pattern looks like bamboo to me. Feel free to download it for your website (for your blog perhaps?).
Source V. Hartikainen
Background pattern originally a PNG drawn in Paint.net
Source Firkin
8 by 8 pixels, and just what the title says.
Source pixilated
Remixed from a JPG that was uploaded to Pixabay by theasad121
Source Firkin
Bright Multicolored Floral Background by Karen Arnold from PDP.
Source GDJ
You just can’t get enough of the fabric patterns, so here is one more for your collection.
Source Krisp Designs
Prismatic Geometric Tessellation Pattern 4 No Background
Source GDJ
A seamless pattern from a tile made from a jpg on Pixabay. To get the tile select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
The image depicts a seamless pattern of a Japanese family crest called "chidori" in Japanese .A chidori in Japanese means a plover in English.
Source Yamachem
A free seamless background texture that looks like a brown stone wall.
Source V. Hartikainen
This is so subtle you need to bring your magnifier!
Source Carlos Valdez
Zero CC tileable hard cover cells, skin like, book texture. 4K, Scanned and made by me CC0
Source Sojan Janso
A heavy dark gray base, some subtle noise and a 45-degree grid makes this look like a pattern with a tactile feel to it.
Source Atle Mo