Meka Dragon (メカドラゴン Meka Doragon), also known as Mecha Dragon, is a boss from Wonder Boy in Monster Land, Wonder Boy III: The Dragon's Trap, its remake Wonder Boy: The Dragon's Trap, and Monster Boy and the Cursed Kingdom.
Meka Dragon is the leader of the monsters and the final boss. At first it appears to be a normal dragon, but after Book defeats it, it is revealed to be a robot from outer space. It attacks by releasing powerful flames from its mouth.
The game starts at the end of Wonder Boy in Monster Land, with Meka Dragon being the first boss. After its defeat, it casts a curse on Book that transforms him into a Lizard-Man.
- In Saiyūki World, the Dragon was replaced by Kyuu Maou (きゅうまおう), the Bull Demon King (牛魔王). After his defeat, Kyuu Maou "reveals his true form" (しょうたいをあらわした Shoutai wo Arawashita).