A simple example on using clones. You can generate a nice base for a pattern fill quickly with it.
Source Lazur URH
The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Horizontal and vertical lines on a light gray background.
Source Adam Anlauf
I guess this is inspired by the city of Ravenna in Italy and its stone walls.
Source Sentel
Not so subtle. These tileable wood patterns are very useful.
Source Elemis
Subtle scratches on a light gray background.
Source Andrey Ovcharov
Medium gray pattern with small strokes to give a weave effect.
Source Catherine
Luxurious looking pattern (for a T-shirt maybe?) with a hint of green.
Source Simon Meek
You know you can’t get enough of these linen-fabric-y patterns.
Source James Basoo
Remixed from a PNG that was uploaded to Pixabay by VictorianLady
Source Firkin
Prismatic Curved Diamond Pattern 4 No Background
Source GDJ
A beautiful dark wood pattern, superbly tiled.
Source Omar Alvarado
Same as Silver Scales, but in black. Turn your site into a dragon with this great scale pattern.
Source Alex Parker
Same as the black version, but now in shades of gray. Very subtle and fine grained.
Source Atle Mo
A seamless pattern of leopard skin. It should look nice as a background element on web pages.
Source V. Hartikainen
Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Prismatic Triangular Seamless Pattern III With Background
Source GDJ
Abstract Stars Geometric Pattern Prismatic No Background
Source GDJ
Not a flat you live inside, like in the UK – but a flat piece of cardboard.
Source Appleshadow
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Derived from elements found in a floral ornament drawing on Pixabay.
Source Firkin
A seamless pattern created from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin