David Avellan (born July 7, 1981) is an American former submission wrestler, professional mixed martial artist (MMA) and Brazilian jiu-jitsu (BJJ) practitioner and coach.

A co/founder of Freestyle Fighting Academy, he has trained a number of UFC fighters including Jorge Masvidal and is credited with introducing the term 'kimura trap' and 'kimura trap system' into BJJ common vocabulary.

[1] After a successful wrestling career in high school, Avellan got into NHB (No Holds Barred) fighting.

[1] In 2001, Avellan and his brother Marcos opened the Freestyle Fighting Academy (FFA).

In 2002 the Avellan brothers started training Brazilian jiu jitsu under Ricardo Teixeira, from whom they received their black belt three years later.