A seamless pattern drawn originally in Paint.net by distorting a slice of background pattern 116 and copying the resulting triangle numerous times.
Source Firkin
Sometimes simple really is what you need, and this could fit you well.
Source Factorio.us Collective
The name Paisley reminds me of an old British servant. That’s just me.
Source Swetha
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
From a drawing in 'In an Enchanted Island', William Mallock, 1892.
Source Firkin
This texture looks like old leather. It should look great as a background on web pages.
Source V. Hartikainen
Wild Oliva or Oliva Wilde? Darker than the others, sort of a medium dark pattern.
Source Badhon Ebrahim
Use shift+alt+i on the selected rectangle in Inkscape to get the tile this is based on
Source Firkin
Zero CC Mossy stone tileable texture, photographed and made by me. CC0
Source Sojan Janso
From a drawing in 'Less Black than we're painted', James Payn, 1884.
Source Firkin
ZeroCC tileable mossy (lichen) stone texture, edited from pixabay. CC0
Source Sojan Janso
Prismatic Rounded Squares Grid 3 No Background
Source GDJ
A textured orange background pattern with vertical stripes.
Source V. Hartikainen
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A seamless gray background texture suitable for use on websites. To me, it has the look of stone. Feel free to modify it to meet your needs (by making it a bit lighter or darker, for example).
Source V. Hartikainen
Derived from an image that was uploaded to Pixabay by Kaz
Source Firkin
This light background pattern has a texture of "frozen" surface with diagonal stripes. Here's an yet another addition to the collection of free website backgrounds.
Source V. Hartikainen
I have no idea how to describe this one, but it’s light and delicate.
Source JBasoo
Light honeycomb pattern made up of the classic hexagon shape.
Source Federica Pelzel