The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i
Source Firkin
Prismatic Polka Dots Mark II No Background
Source GDJ
Can’t believe we don’t have this in the collection already! Slick woven pattern with crisp details.
Source Max Rudberg
Here's a bluish gray striped background pattern for use on web sites.
Source V. Hartikainen
More leather, and this time it’s bigger! You know, in case you need that.
Source Elemis
Remix from a drawing in 'Ostatnie chwile powstania styczniowego', Zygmunt Sulima, 1887.
Source Firkin
Luxurious looking pattern (for a T-shirt maybe?) with a hint of green.
Source Simon Meek
Dark wooden pattern, given the subtle treatment. based on texture from Cloaks. https://cloaks.deviantart.com
Source Atle Mo
A repeating background with seamless texture of stone. There haven't been any stone-like backgrounds for a while, so I have decided to create one more. The rest can be found in the appropriate category.
Source V. Hartikainen
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
Abstract Ellipses Background Grayscale
Source GDJ
From a drawing in 'The Quiver of Love', Walter Crane, 1876
Source Firkin
Dark, square, clean and tidy. What more can you ask for?
Source Jaromír Kavan
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
This is indeed a bit strange, but here’s to the crazy ones!
Source Christopher Buecheler
That’s what it is, a dark dot. Or sort of carbon looking.
Source Tsvetelin Nikolov
Number 4 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Prismatic Abstract Geometric Background 5 No Black
Source GDJ
Prismatic Abstract Geometric Background 3
Source GDJ
You know you can’t get enough of these linen-fabric-y patterns.
Source James Basoo
Looks like a technical drawing board: small squares forming a nice grid.
Source We Are Pixel8
This was formed by distorting an image of a background on Pixabay.
Source Firkin