Basic2Col A basic, yet flexible minimalistic two column theme for WordPress. Have extendend support for Child Themes for easier customization. See the Basic2Col’s homepage for KKWangen
Infimum A very minimal theme, widget-ready, gravatar-supporting, and standards-compliant. Black on white with blue highlights, two columns with a thin right sidebar. Possibly the minimalest iijnaeo
Translucent Fluidity 2 A fluid two-column style that’s widget ready and ported to WordPress from my original open source template arwen54
Lime Slice WP Lime Slice theme designed by AOE. A fresh and juicy modern design in lime color, suitable for food and drink websites or just AOE - the open web company
Cloudy WP Cloudy theme designed by AOE. Cloudy is a beautiful simple blog theme, designed for commercial and more technical blogs. Now also widget ready. AOE - the open web company
Vista “Vista” is a free WordPress theme inspired by Windows Vista interface. Options page allows you to change to 2 or 3 columns page layout. azmoney
Floristica WP Floristica theme designed by AOE. A simple but very beautiful design in black and yellow colors. Now also widget ready. AOE - the open web company
Daydreams Daydreams is a white 2 columns theme, need no plugins, simple cool, developed by J, April 20th, 2008. mrj-1
Vista
“Vista” is a free WordPress theme inspired by Windows Vista interface. Options page allows you to change to 2 or 3 columns page layout.