David Avellan is an American grappler and professional mixed martial artist who has fought for World Extreme Cagefighting and Bodog Fight promotions. Past opponents include French journeyman Antony Rea and UFC contender Aaron Simpson. He continues to develop new training videos and techniques that are widely used in the MMA community including the Kimura Trap. David Avellan is credited with introducing the term 'kimura trap' and 'kimura trap system' into BJJ common vocabulary.