Roberto Janet Durruty (born 29 August 1986) is a Cuban track and field athlete who competes in the hammer throw.

[1] Born in Santiago de Cuba Province,[2] Janet began competing internationally in 2005 and was runner-up to Boldizsar Kocsor at the 2005 Pan American Junior Athletics Championships.

[1] Janet reached the top of the national scene in 2009 and won the Barrientos Memorial with a throw of 73.17 m.[6] A personal best of 74.95 m preceded his first major win at the 2009 Central American and Caribbean Championships in Athletics, where he beat Cuban rival Noleysi Bicet.

[8] His second international title came at the 2010 Ibero-American Championships in Athletics as he broke Juan Ignacio Cerra's six-year dominance of the competition.

[1] However, he performed well in international competition, defending his title at the 2011 CAC Championships and placed fifth at the Pan American Games.