Yennifer Frank Casañas Hernández (born 18 October 1978) is a discus thrower.

Born in Cuba, he represented his country of birth until May 2008, then Spain.

In the 2008 Olympic Games he competed for Spain, reaching the fifth position in the final.

His personal best throw is 67.91 metres, which he achieved in June 2008 in Castellón.

This biographical article relating to Spanish athletics is a stub.