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.
Projects in Dark
Purple & Black modded ACP Theme
Green Noise
by sirev
Green noise theme under blue-grayed backgrounds.

Cheater theme, very basic and my first theme.

Updated version of Audentio GamingJam theme.

A darkness bassed default theme.

Impulse Dark is the sister theme of Simple MyBB Variant Theme

ElwitchTheme is a theme for your mybb forum.

Free Responsive MyBB Theme - NetPen
Material new admin panel theme

Cool little theme by Lunorian

Elusive is a clean and elegant Flat MyBB theme which can be used by all sort of community users. Elusive is a mobile-friendly, fully responsive theme for MyBB 1.8.11, optimised for performance.

A very simple black and grey efficient theme and template. Easy on the eyes, useful member block controls. A great theme if you want users to spend lots of time on the forum.

BLUX - A nice & simple flat theme for MyBB.

The default MyBB theme with inverted colors blue and black.

This is a great theme for hacking sites

theme update for Mybb 1.8.x