Geometric triangles seem to be quite hot these days.
Source Pixeden
From a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
A seamless design of flowers remixed from a jpg on Pixabay by Prawny.
Source Firkin
Lovely pattern with splattered vintage speckles.
Source David Pomfret
Dark and hard, just the way we like it. Embossed triangles makes a nice pattern.
Source Ivan Ginev
Oh yes, it happened! A pattern in full color.
Source Atle Mo
Remixed from a drawing in 'A Child of the Age', Francis Adams, 1894.
Source Firkin
Remixed from a drawing in 'Paul's Sister', Frances Peard, 1889.
Source Firkin
A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Dark, crisp and subtle. Tiny black lines on top of some noise.
Source Wilmotte Bastien
Sweet and subtle white plaster with hints of noise and grunge.
Source Phil Maurer
A beautiful dark padded pattern, like an old classic sofa.
Source Chris Baldie
I love these crisp, tiny, super subtle patterns.
Source Badhon Ebrahim
Nice and simple crossed lines in dark gray tones.
Source Stefan Aleksić
Not sure if this is related to the Nami you get in Google image search, but hey, it’s nice!
Source Dertig Media
An attempt for cleaning up the original image in a few steps.
Source Lazur URH
The image depicts a seamless pattern of a Japanese family crest called "chidori" in Japanese .A chidori in Japanese means a plover in English.
Source Yamachem
From a drawing in 'Les Chroniqueurs de l'Histoire de France depuis les origines jusqu'au XVIe siècle', Henriette Witt, 1884.
Source Firkin
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Not even 1kb, but very stylish. Gray thin lines.
Source Struck Axiom
Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.
Source Firkin
A free background image with a seamless texture of cardboard. This texture of cardboard looks quite realistic, especially when is actually tiled.
Source V. Hartikainen