Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
A simple bump filter made upon request at irc #inkscape at freenode. Made a screen capture of the making here: https://youtu.be/TGAWYKVLxQw
Source Lazur URH
Carbon fiber is never out of fashion, so here is one more style for you.
Source Alfred Lee
This one needs to be used in small areas; you can see it repeat.
Source Luca
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
The classic notebook paper with horizontal stripes.
Source Are Sundnes
Classic vertical lines, in all its subtlety.
Source Cody L
The image depicts a tiled seamless pattern.The tile represents four leaves aligned every 90 ° , which may look like a bird or a dragon .The original leaf design is from a Japanese old book.
Source Yamachem
This is a remix of "geometrical pattern 01".
Source Yamachem
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
You guessed it – looks a bit like cloth.
Source Peax Webdesign
Not sure if this is related to the Nami you get in Google image search, but hey, it’s nice!
Source Dertig Media
An abstract Background pattern of purple twisty patterns.
Source TikiGiki
Retro Circles Background 5 No Black
Source GDJ
Made by distorting a simple pattern using the 'sin waves' plugin for Paint.net and vectorising in Vector Magic
Source Firkin
Prismatic Curved Diamond Pattern 8 No Background
Source GDJ
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
Remixed from a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
This makes me wanna shoot some pool! Sweet green pool table pattern.
Source Caveman
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
Prismatic Isometric Cube Extra Pattern No Background
Source GDJ
Did anyone say The Hoff? This pattern is in no way related to Baywatch.
Source Josh Green
The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin