Owen Moncrieffe (born 5 August 1976) known professionally as Fantan Mojah is a Jamaican reggae singer.
Fantan Mojah was born in White Hill, St Elizabeth Parish, Jamaica. To gain experience, he took a job working with a traveling soundsystem, and performed songs during soundchecks. He adopted the name Mad Killer, in an homage to one of his favorite artists, Bounty Killer. After being exposed to the Rastafarian movement his music began to take on a more positive tone, and he was encouraged by Capleton to take the name Fantan Mojah.