Moisés Dueñas Nevado (born 10 May 1981 in Béjar) is a Spanish former road racing cyclist, who competed professionally between 2002 and 2009, and then again from 2012 to 2015.

On 16 July 2008, just before the 11th stage of the Tour de France, the French Anti-Doping Agency (the AFLD) reported that he had tested positive for the banned substance Erythropoietin.

Dueñas retired from professional cycling at the end of 2015.