A white version of the very popular linen pattern.
Source Ant Ekşiler
This one is amazing, truly original. Go use it!
Source Viahorizon
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Prismatic Abstract Geometric Background 5
Source GDJ
Scanned some rice paper and tiled it up for you. Enjoy.
Source Atle Mo
A seamless background of warped stripes on paper.
Source V. Hartikainen
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
One more from Badhon, sharp horizontal lines making an embossed paper feeling.
Source Badhon Ebrahim
The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Abstract Arbitrary Geometric Background derived from an image on Pixabay.
Source GDJ
An alternative colour scheme to the original seamless pattern.
Source Firkin
Like the name says, light and gray, with some small dots and circles.
Source Brenda Lay