Not sure if this is related to the Nami you get in Google image search, but hey, it’s nice!
Source Dertig Media
Lovely pattern with some good-looking non-random noise lines.
Source Zucx
Derived from elements found in a floral ornament drawing on Pixabay.
Source Firkin
Same classic 45-degree pattern, dark version.
Source Luke McDonald
From a drawing in 'Studies for Stories', Jean Ingelow, 1864.
Source Firkin
Retro Circles Background 7 No Black
Source GDJ
The starting point for this was a texture drawn with the 'Radial Colors' plug-in in Paint.net.
Source Firkin
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Derived from elements found in a floral ornament drawing on Pixabay.
Source Firkin
The image is a seamless pattern which is derived from a vine .Consequently, the vine got like dots via vectorization.The original vine is here:jp.pinterest.com/pin/500744052301410188/
Source Yamachem
The name alone is awesome, but so is this sweet dark pattern.
Source Federica Pelzel
A re-make of the Gradient Squares pattern.
Source Dimitar Karaytchev
From a drawing in 'Uit de geschiedenis der Heilige Stede te Amsterdam', Yohannes Sterck, 1898.
Source Firkin
This one is amazing, truly original. Go use it!
Source Viahorizon
A free seamless background texture that looks like a brown stone wall.
Source V. Hartikainen
Made by distorting a simple pattern using the 'sin waves' plugin for Paint.net and vectorising in Vector Magic
Source Firkin
Paper pattern with small dust particles and 45-degree strokes.
Source Atle Mo
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
Coming in at 666x666px, this is an evil big pattern, but nice and soft at the same time.
Source Atle Mo
From a drawing in 'Real Sailor-Songs', John Ashton, 1891.
Source Firkin