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 Chevrons Pattern 5 With Background
Source GDJ
Neat little photography icon pattern.
Source Hossam Elbialy
A dark gray, sandy pattern with small light dots, and some angled strokes.
Source Atle Mo
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Old China with a modern twist, take two.
Source Adam Charlts
A seamless pattern from a tile made from a jpg on Pixabay. To get the tile select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
A new take on the black linen pattern. Softer this time.
Source Atle Mo
Alternative colour scheme to the original.
Source Firkin
ZeroCC tileable moss texture, photographed and made by me. CC0
Source Sojan Janso
A background formed from an image of an old tile on the New York Metropolitan Museum of Art website. To get the base tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
An alternative colour scheme for the original background.
Source Firkin
Subtle scratches on a light gray background.
Source Andrey Ovcharov
From a drawing in 'Az Osztrák-Magyar Monarchia irásban és képben', 1885.
Source Firkin
This one is amazing, truly original. Go use it!
Source Viahorizon
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
Lovely pattern with some good-looking non-random noise lines.
Source Zucx
Lovely pattern with splattered vintage speckles.
Source David Pomfret
One more in the line of patterns inspired by Japanese/Asian styles. Smooth.
Source Kim Ruddock
Derived from an image that was uploaded to Pixabay by mdmelo.
Source Firkin
Looks a bit like concrete with subtle specks spread around the pattern.
Source Mladjan Antic
Super detailed 16×16 tile that forms a beautiful pattern of straws.
Source Pavel