Looks like a technical drawing board: small squares forming a nice grid.
Source We Are Pixel8
Made by distorting a simple pattern using the 'sin waves' plugin for Paint.net and vectorising in Vector Magic
Source Firkin
Prismatic Geometric Pattern Background No Black
Source GDJ
Clover with background for St. Patrick's Day. Add to a card with a doily, ribbon, a leprechaun or other embellishments.
Source BAJ
Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
It’s an egg, in the form of a pattern. This really is 2012.
Source Paul Phönixweiß
From a drawing in 'Artists and Arabs', Henry Blackburn, 1868
Source Firkin
Light and tiny, just the way you like it.
Source Rohit Arun Rao
Formed by distorting the inside front cover of 'Diversæ insectarum volatilium : icones ad vivum accuratissmè depictæ per celeberrimum pictorem', Jacob Hoefnagel, 1630.
Source Firkin
Inspired by the B&O Play, I had to make this pattern.
Source Atle Mo
A seamless canvas texture for using as background on websites. Colored in pale tones of brown.
Source V. Hartikainen
Prismatic Polka Dots 3 No Background
Source GDJ
A lovely light gray pattern with stripes and a dash of noise.
Source V. Hartikainen
Lovely light gray floral motif with some subtle shades.
Source GraphicsWall
A light gray fabric pattern with faded vertical stripes.
Source V. Hartikainen