Lorenzo Trejo Valencia (born 15 June 1977), known as Lorenzo Trejo, is a Mexican boxer.
In 2003, he lost to Iván Calderón for the World Boxing Organization minimumweight world title.
In 2006, Trejo lost to Eagle Kyowa for the World Boxing Council minimumweight world title.
In 2007, Trejo lost to ÃÂdgar Sosa for the World Boxing Council light flyweight world title.
Trejo lost to Antonio Nieves in 2015.