A topographic map like this has actually been requested a few times, so here you go!
Source Sam Feyaerts
Classy golf-pants pattern, or crossed stripes if you will.
Source Will Monson
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
A textured blue background pattern with vertical stripes.
Source V. Hartikainen
A seamless pattern created from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
I asked Gjermund if he could make a pattern for us – result!
Source Gjermund Gustavsen
This is the remix of an OCAL clipart called "Art Nouveau ornament" uploaded by "microcosme".Thanks.This is a seamless pattern of an Art Nouveau ornament.
Source Yamachem
Prismatic Polyskelion Pattern No Background
Source GDJ
He influenced us all. “Don’t be sad because it’s over. Smile because it happened.”
Source Atle Mo
Geometric triangles seem to be quite hot these days.
Source Pixeden
Black brick wall pattern. Brick your site up!
Source Alex Parker
Just the symbols of the signs of the zodiac distributed in a chequer board-like pattern
Source Firkin
Remixed from a drawing that was uploaded to Pixabay by ractapopulous
Source Firkin
Small gradient crosses inside 45-degree boxes, or bigger crosses if you will.
Source Wassim
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Hey, you never know when you’ll need a bird pattern, right?
Source Pete Fecteau
You know I’m a sucker for these. Well-crafted paper pattern.
Source Mihaela Hinayon
More carbon fiber for your collections. This time in white or semi-dark gray.
Source Badhon Ebrahim
A slightly more textured pattern, medium gray. A bit like a potato sack?
Source Bilal Ketab
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
This background image has seamless texture that resembles a surface of gray stone.
Source V. Hartikainen
Colorful Floral Background 3 No Black
Source GDJ
Simple combination of stripy squares with their negatively coloured counterparts
Source Firkin