Parket & Wood CC0 texture.
One more in the line of patterns inspired by Japanese/Asian styles. Smooth.
Source Kim Ruddock
People seem to enjoy dark patterns, so here is one with some circles.
Source Atle Mo
It has waves, so make sure you don’t get sea sickness.
Remixed from an SVG by Devanath found on Pixabay
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift-alt-i.
It looks like a polished stone surface to me. Download it for free, as always.
Source V. Hartikainen
Formed by distorting the inside front cover of 'Diversæ insectarum volatilium : icones ad vivum accuratissmè depictæ per celeberrimum pictorem', Jacob Hoefnagel, 1630.
I put the 1 after 2, call me crazy.
Source Dima Shiper
We have some linen patterns here, but none that are stressed. Until now.
Source Jordan Pittman