The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Free tiled background with colorful stripes and white splatter.
Source V. Hartikainen
Geometric lines are always hot, and this pattern is no exception.
Source Listvetra
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
From a drawing in 'A Guide to the Guildhall of the City of London', John Baddeley, 1898.
Source Firkin
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
A fun-looking elastoplast/band-aid pattern. A hint of orange tone in this one.
Source Josh Green
You don’t see many mid-tone patterns here, but this one is nice.
Source Joel Klein
It has waves, so make sure you don’t get sea sickness.
Source CoolPatterns
As simple and subtle as it gets. But sometimes that’s just what you want.
Source Designova
From a drawing in 'Resa i Afrika, genom Angola, Ovampo och Damaraland', P. Moller, 1899.
Source Firkin
Nicely executed tiling for an interesting pattern.
Source Ignasi Àvila Padró
I have no idea what J Boo means by this name, but hey – it’s hot.
Source j Boo
A free green background pattern with a pattern of rhombuses on a seamless texture. Feel free to use it as a tiled background image on your web site.
Source V. Hartikainen
A repeating background of beige paper with vintage look. Repeats to infinity, as usual.
Source V. Hartikainen
Nice and simple crossed lines in dark gray tones.
Source Stefan Aleksić
A pale olive green background with a seamless texture.
Source V. Hartikainen
From a drawing in 'In an Enchanted Island', William Mallock, 1892.
Source Firkin
Did anyone say The Hoff? This pattern is in no way related to Baywatch.
Source Josh Green
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin