Small gradient crosses inside 45-degree boxes, or bigger crosses if you will.
Source Wassim
This is a hot one. Small, sharp and unique.
Source GraphicsWall
A re-make of the Gradient Squares pattern.
Source Dimitar Karaytchev
Dark blue concrete wall with some small dust spots.
Source Atle Mo
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
ZeroCC tileable stone texture, edited from pixabay. CC0
Source Sojan Janso
This is sort of fresh, but still feels a bit old school.
Source Martuchox
Kaleidoscope Prismatic Abstract No Background
Source GDJ
This is so subtle I hope you can see it! Tweak at will.
Source Alexandre Naud
A classic dark tile for a bit of vintage darkness.
Source Listvetra
Bright Multicolored Floral Background by Karen Arnold from PDP.
Source GDJ
Not sure if this is related to the Nami you get in Google image search, but hey, it’s nice!
Source Dertig Media
Orange-red pattern for tiled backgrounds.
Source V. Hartikainen
Prismatic Abstract Background Design No Black
Source GDJ
Brushed aluminum, in a bright gray version. Lovely 2X as well.
Source Andre Schouten
A light brushed aluminum pattern for your pleasure.
Source Tim Ward
Prismatic Basic Pattern 2 No Background
Source GDJ
The image depicts a seamless pattern of pine tree leaves.
Source Yamachem
A pattern drawn in Paint.net and vectorized in Inkscape.
Source Firkin
Zero CC Mossy stone tileable texture, photographed and made by me. CC0
Source Sojan Janso