Not sure if this is related to the Nami you get in Google image search, but hey, it’s nice!
Source Dertig Media
More in the paper realm, this time with fibers.
Source Jorge Fuentes
Prismatic Abstract Geometric Background 3
Source GDJ
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Continuing the geometric trend, here is one more.
Source Mike Warner
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
A seamless pattern formed from background pattern 102
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
A seamless green background texture. The image is distributed under a Creative Commons License (like all of the images here).
Source V. Hartikainen
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
A free web background image with a seamless concrete-like texture and an Indian-red color.
Source V. Hartikainen
From an image on opengameart.org shared by rubberduck.
Source Firkin
Nicely crafted paper pattern, although a bit on the large side (500x593px).
Source Blaq Annabiosis
Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
Hexagonal dark 3D pattern. What more can you ask for?
Source Norbert Levajsics
Non-seamless pattern drawn in Paint.net and vectorised in Vector Magic.
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
Super dark, crisp and detailed. And a Kill Bill reference.
Source Badhon Ebrahim
If you need a green background for your blog/website, try this one. Remember that Green Striped Background is seamlessly tileable.
Source V. Hartikainen
This is the remix of an Openclipart clipart called "Maze" uploaded by "any_ono_mous".Thanks.This is a seamless pattern of a maze.
Source Yamachem
Sometimes you just need the simplest thing.
Source Fabricio
Classic vertical lines, in all its subtlety.
Source Cody L