You may use it as is, or modify it as you like.
Source V. Hartikainen
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
This is a hot one. Small, sharp and unique.
Source GraphicsWall
Remixed from a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Remixed from a drawing that was uploaded to Pixabay by captenpub.
Source Firkin
A pattern derived from repeating unit cells each derived from part of a fractal rendering in paint.net.
Source Firkin
This ladies and gentlemen, is texturetastic! Love it.
Source Adam Pickering
Love the style on this one, very fresh. Diagonal diamond pattern. Get it?
Source INS
It almost looks a bit blurry, but then again, so are fishes.
Source Petr Šulc
Remixed from a drawing in 'Paul's Sister', Frances Peard, 1889.
Source Firkin
A new take on the black linen pattern. Softer this time.
Source Atle Mo
A seamless web texture of "green stone".
Source V. Hartikainen
Luxury pattern, looking like it came right out of Paris.
Source Daniel Beaton
Super dark, crisp and detailed. And a Kill Bill reference.
Source Badhon Ebrahim
The image depicts polka dot seamless pattern.
Source Yamachem
Prismatic Geometric Tessellation Pattern 2 No Background
Source GDJ
ZeroCC tileabel stone granite texture, edited from pixabay. CC0
Source Sojan Janso
Clover with background for St. Patrick's Day. Add to a card with a doily, ribbon, a leprechaun or other embellishments.
Source BAJ
A mid-tone gray pattern with some cement looking texture.
Source Hendrik Lammers
Tiny, tiny 3D cubes. Reminds me of the good old pattern from k10k.
Source Etienne Rallion