The Unión Nacional Odriísta is a Peruvian Political party founded in 1961 by old the president Manuel A. Odría which was presented to the presidential elections of 1962. Julio of Piedra was one of its principal leaders.

It is historically known to be combined with the Parti Apriste Péruvien (American revolutionary popular Alliance) in the Années 1960:

1. at the time of the general elections of 1962, which caused a Coup d'etat Army,
2. to be opposed politically to the government chair Belaúnde during the mandate of this last (1963-1968).