Giving your forum an entirely new look and feel is easy — just download one of these great themes! There are even themes for the admin control panel.
Browsing All Themes

A dark semi transparent gaming skin

Focus is a clean and Elegant Flat MyBB theme which can be used by all sort of community users, one of the cool features of this theme is shrinking header on scroll. Focus MyBB Theme has been tested thoroughly on all browsers.

MyBB Dark is a twist of the default MyBB theme in that everything is darkened.

Free dark flat theme

A flat and simple responsive premium theme for free now!

Flatty - A nice & simplistic flat theme for MyBB.

Classic Blue is remake of a old theme TheTechGame.com used back in 2011. This theme is a nice white and blue theme for almost any type of forum.

Dark and responsive theme for MyBB 1.8 by Marihunaen.

The Agood theme was designed for MyBB 1.8.21+ series.

Inferno theme for mybb

eXe is a mobile compatible and desktop mybb theme.Applies to Mybb versions 1.8.X

Responsive and multicolor ACP theme in Flat Design

Dark Night is a modified dark version of the default ACP Theme

Add a dark color for your Default theme

This dark SC Editor style can be useful for forums with dark themes
A nice looking version of defult MyBB theme, created for a Polish Minecraft server board.

Emre KRMN vBulletin default style theme for mybb 1.8.x
This theme is based off of the Wordpress theme Frontier.
Purple & Black modded ACP Theme