Lauren Billys Shady (born 14 May 1988) is an American-born eventer who represents Puerto Rico. She competed at the 2016 Summer Olympics in Rio de Janeiro, where she finished 44th in the individual competition. In doing so, Billys became the first Puerto Rican eventer to compete at the Olympics since 1988. She was eligible to represent Puerto Rico in the event because her grandmother is Puerto Rican.