Roberto Janet Durruty (born 29 August 1986) is a Cuban track and field athlete who competes in the hammer throw. He has a personal best of 77.08 metres, set in 2012. He is a two-time champion at the Central American and Caribbean Championships in Athletics and the Ibero-American Championships in Athletics. He represented Cuba at the 2011 Pan American Games and the 2012 Summer Olympics, as well as the 2013 and 2015 Athletics World Championships.