Not sure if this is related to the Nami you get in Google image search, but hey, it’s nice!
Source Dertig Media
The image depicts a seamless pattern made using a bird's face.
Source Yamachem
Formed by distorting a JPG from PublicDomainPictures
Source Firkin
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Classic vertical lines, in all its subtlety.
Source Cody L
Prismatic Abstract Geometric Background 2 No Black
Source GDJ
A black tile-able background with paper-like texture.
Source V. Hartikainen
Remixed from a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
A tile-able background for websites with paper-like texture and a grid pattern layered on top of it.
Source V. Hartikainen
Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
A light gray fabric pattern with faded vertical stripes.
Source V. Hartikainen
It’s like Shine Dotted’s sister, only rotated 45 degrees.
Source mediumidee
You could get a bit dizzy from this one, but it might come in handy.
Source Dertig Media
From a drawing in 'Prose and Verse ', William Linton, 1836.
Source Firkin
The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Derived from a drawing in 'The Murmur of the Shells', Samuel Cowen, 1879.
Source Firkin
Zero CC Mossy stone tileable texture, photographed and made by me. CC0
Source Sojan Janso
Number 3 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
A seamless pattern from a tile made from a jpg on Pixabay. To get the tile select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
An abstract pale yellow paper-like background with stains colored in yellow and green.
Source V. Hartikainen