Teófilo Antonio Diek Andon (born December 13, 1987) is a Dominican judoka, who played for the half-heavyweight category.
He won the bronze medal for the same division at the 2007 Pan American Games in Rio de Janeiro, Brazil.Diek represented the Dominican Republic at the 2008 Summer Olympics in Beijing, where he competed for the men's half-heavyweight class (100 kg).
He received a bye for the second preliminary match, before losing out by an automatic ippon to thirty-four-year-old Canadian judoka Keith Morgan.