Prismatic Geometric Tessellation Pattern No Background
Source GDJ
This one is super crisp at 2X. Lined paper with some dust and scratches.
Source HQvectors
The square tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
This is the remix of an Openclipart clipart called "Maze" uploaded by "any_ono_mous".Thanks.This is a seamless pattern of a maze.
Source Yamachem
More in the paper realm, this time with fibers.
Source Jorge Fuentes
A dark gray, sandy pattern with small light dots, and some angled strokes.
Source Atle Mo
A simple example on using clones. You can generate a nice base for a pattern fill quickly with it.
Source Lazur URH
Derived from elements found in a floral ornament drawing on Pixabay.
Source Firkin
A seamless pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Derived from a design in 'Storia del Palazzo Vecchio in Firenze', Aurelio Gotti, 1889.
Source Firkin
A bit like some carbon, or knitted netting if you will.
Source Anna Litvinuk
Formed from a tile based on a drawing from 'Viaggi d'un artista nell'America Meridionale', Guido Boggiani, 1895.
Source Firkin
Recreated from a pattern found in 'Az Osztrák-Magyar Monarchia irásban és képben', 1882. To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Geometric Pattern Background 2 No Black
Source GDJ
Just what the name says, paper fibers. Always good to have.
Source Heliodor jalba
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
Floral patterns might not be the hottest thing right now, but you never know when you need it!
Source Lauren
Brushed aluminum, in a bright gray version. Lovely 2X as well.
Source Andre Schouten
The act or state of corrugating or of being corrugated, a wrinkle; fold; furrow; ridge.
Source Anna Litvinuk
Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
A huge one at 800x600px. Made from a photo I took going home after work.
Source Atle Mo
Inspired by a drawing in 'Poems', James Smith, 1881.
Source Firkin
Super subtle indeed, a medium gray pattern with tiny dots in a grid.
Source Designova