One more from Badhon, sharp horizontal lines making an embossed paper feeling.
Source Badhon Ebrahim
Classic vertical lines, in all its subtlety.
Source Cody L
Small gradient crosses inside 45-degree boxes, or bigger crosses if you will.
Source Wassim
A car pattern?! Can it be subtle? I say yes!
Source Radosław Rzepecki
A seamless pattern with green and yellow diagonal lines on top of a white dotted background.
Source V. Hartikainen
Black And White Floral Pattern Background from PDP.
Source GDJ
This could be a hippy vintage wallpaper.
Source Tileable Patterns
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin
From a drawing in 'The Quiver of Love', Walter Crane, 1876
Source Firkin
The image depicts a pattern of regular hexagon.As I made to use it for myself,I want to others to use it.Speaking about the ratio of the image, height : width = 2 : √3(1.732...)Ridiculous to say,I realized later that this image is not honey comb pattern.I have to slide the second row.
Source Yamachem
Plywood Web Background background image for use in web design.
Source V. Hartikainen
Psychedelic Geometric Background No Black
Source GDJ
The image a seamless pattern of a wire-mesh fence.I want you to use this pattern as a lower layer.
Source Yamachem
From a drawing in 'Uit de geschiedenis der Heilige Stede te Amsterdam', Yohannes Sterck, 1898.
Source Firkin
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
The square tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Geometric triangles seem to be quite hot these days.
Source Pixeden
Dark Tile-able Grunge Texture. I think this texture can be classified as grunge. It's free and seamless, as always.
Source V. Hartikainen
Prismatic Curved Diamond Pattern 7 No Background
Source GDJ
Remixed from a drawing in 'Maidenhood; or, the Verge of the Stream', Laura Jewry, 1876.
Source Firkin
After 1 comes 2, same but different. You get the idea.
Source Hendrik Lammers
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett