Yankiel León Alarcón (born 26 April 1982 in Jobabo) is a Cuban amateur boxer best known for winning the bantamweight silver medal at the 2008 Olympics.

Leon won gold at the World Junior Championships in Budapest, Hungary in 2000 as a light flyweight.

At bantam he stood in the shadows of near-invincible two-time Olympic champion Guillermo Rigondeaux who beat him eight times.

After it became clear that the banned Rigondeaux would not be sent to Beijing, Leon trained harder and beat archrival Toledo and Yurien Fabregas at the nationals 2008.

He holds wins over Yan Bartelemí, Yuriorkis Gamboa and Iván Calderón (PUR) among others.